20001493800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{19}}^2\times {\mathrm{30781}}^1$

素因数の和:30841

約数の個数: 216

約数和(自身を含む): 70895409390

約数和(自身を除く): 50893915590

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 25, 30, 36, 38, 40, 45, 50, 57, 60, 72, 75, 76, 90, 95, 100, 114, 120, 150, 152, 171, 180, 190, 200, 225, 228, 285, 300, 342, 360, 361, 380, 450, 456, 475, 570, 600, 684, 722, 760, 855, 900, 950, 1083, 1140, 1368, 1425, 1444, 1710, 1800, 1805, 1900, 2166, 2280, 2850, 2888, 3249, 3420, 3610, 3800, 4275, 4332, 5415, 5700, 6498, 6840, 7220, 8550, 8664, 9025, 10830, 11400, 12996, 14440, 16245, 17100, 18050, 21660, 25992, 27075, 30781, 32490, 34200, 36100, 43320, 54150, 61562, 64980, 72200, 81225, 92343, 108300, 123124, 129960, 153905, 162450, 184686, 216600, 246248, 277029, 307810, 324900, 369372, 461715, 554058, 584839, 615620, 649800, 738744, 769525, 923430, 1108116, 1169678, 1231240, 1385145, 1539050, 1754517, 1846860, 2216232, 2308575, 2339356, 2770290, 2924195, 3078100, 3509034, 3693720, 4617150, 4678712, 5263551, 5540580, 5848390, 6156200, 6925725, 7018068, 8772585, 9234300, 10527102, 11081160, 11111941, 11696780, 13851450, 14036136, 14620975, 17545170, 18468600, 21054204, 22223882, 23393560, 26317755, 27702900, 29241950, 33335823, 35090340, 42108408, 43862925, 44447764, 52635510, 55405800, 55559705, 58483900, 66671646, 70180680, 87725850, 88895528, 100007469, 105271020, 111119410, 116967800, 131588775, 133343292, 166679115, 175451700, 200014938, 210542040, 222238820, 263177550, 266686584, 277798525, 333358230, 350903400, 400029876, 444477640, 500037345, 526355100, 555597050, 666716460, 800059752, 833395575, 1000074690, 1052710200, 1111194100, 1333432920, 1666791150, 2000149380, 2222388200, 2500186725, 3333582300, 4000298760, 5000373450, 6667164600, 10000746900, 20001493800]

約数ペア:

[(1, 20001493800), (2, 10000746900), (3, 6667164600), (4, 5000373450), (5, 4000298760), (6, 3333582300), (8, 2500186725), (9, 2222388200), (10, 2000149380), (12, 1666791150), (15, 1333432920), (18, 1111194100), (19, 1052710200), (20, 1000074690), (24, 833395575), (25, 800059752), (30, 666716460), (36, 555597050), (38, 526355100), (40, 500037345), (45, 444477640), (50, 400029876), (57, 350903400), (60, 333358230), (72, 277798525), (75, 266686584), (76, 263177550), (90, 222238820), (95, 210542040), (100, 200014938), (114, 175451700), (120, 166679115), (150, 133343292), (152, 131588775), (171, 116967800), (180, 111119410), (190, 105271020), (200, 100007469), (225, 88895528), (228, 87725850), (285, 70180680), (300, 66671646), (342, 58483900), (360, 55559705), (361, 55405800), (380, 52635510), (450, 44447764), (456, 43862925), (475, 42108408), (570, 35090340), (600, 33335823), (684, 29241950), (722, 27702900), (760, 26317755), (855, 23393560), (900, 22223882), (950, 21054204), (1083, 18468600), (1140, 17545170), (1368, 14620975), (1425, 14036136), (1444, 13851450), (1710, 11696780), (1800, 11111941), (1805, 11081160), (1900, 10527102), (2166, 9234300), (2280, 8772585), (2850, 7018068), (2888, 6925725), (3249, 6156200), (3420, 5848390), (3610, 5540580), (3800, 5263551), (4275, 4678712), (4332, 4617150), (5415, 3693720), (5700, 3509034), (6498, 3078100), (6840, 2924195), (7220, 2770290), (8550, 2339356), (8664, 2308575), (9025, 2216232), (10830, 1846860), (11400, 1754517), (12996, 1539050), (14440, 1385145), (16245, 1231240), (17100, 1169678), (18050, 1108116), (21660, 923430), (25992, 769525), (27075, 738744), (30781, 649800), (32490, 615620), (34200, 584839), (36100, 554058), (43320, 461715), (54150, 369372), (61562, 324900), (64980, 307810), (72200, 277029), (81225, 246248), (92343, 216600), (108300, 184686), (123124, 162450), (129960, 153905)]