20561040

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:211

約数の個数: 200

約数和(自身を含む): 75620160

約数和(自身を除く): 55059120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 81, 90, 95, 108, 114, 120, 135, 144, 152, 162, 167, 171, 180, 190, 216, 228, 240, 270, 285, 304, 324, 334, 342, 360, 380, 405, 432, 456, 501, 513, 540, 570, 648, 668, 684, 720, 760, 810, 835, 855, 912, 1002, 1026, 1080, 1140, 1296, 1336, 1368, 1503, 1520, 1539, 1620, 1670, 1710, 2004, 2052, 2160, 2280, 2505, 2565, 2672, 2736, 3006, 3078, 3173, 3240, 3340, 3420, 4008, 4104, 4509, 4560, 5010, 5130, 6012, 6156, 6346, 6480, 6680, 6840, 7515, 7695, 8016, 8208, 9018, 9519, 10020, 10260, 12024, 12312, 12692, 13360, 13527, 13680, 15030, 15390, 15865, 18036, 19038, 20040, 20520, 22545, 24048, 24624, 25384, 27054, 28557, 30060, 30780, 31730, 36072, 38076, 40080, 41040, 45090, 47595, 50768, 54108, 57114, 60120, 61560, 63460, 67635, 72144, 76152, 85671, 90180, 95190, 108216, 114228, 120240, 123120, 126920, 135270, 142785, 152304, 171342, 180360, 190380, 216432, 228456, 253840, 257013, 270540, 285570, 342684, 360720, 380760, 428355, 456912, 514026, 541080, 571140, 685368, 761520, 856710, 1028052, 1082160, 1142280, 1285065, 1370736, 1713420, 2056104, 2284560, 2570130, 3426840, 4112208, 5140260, 6853680, 10280520, 20561040]

約数ペア:

[(1, 20561040), (2, 10280520), (3, 6853680), (4, 5140260), (5, 4112208), (6, 3426840), (8, 2570130), (9, 2284560), (10, 2056104), (12, 1713420), (15, 1370736), (16, 1285065), (18, 1142280), (19, 1082160), (20, 1028052), (24, 856710), (27, 761520), (30, 685368), (36, 571140), (38, 541080), (40, 514026), (45, 456912), (48, 428355), (54, 380760), (57, 360720), (60, 342684), (72, 285570), (76, 270540), (80, 257013), (81, 253840), (90, 228456), (95, 216432), (108, 190380), (114, 180360), (120, 171342), (135, 152304), (144, 142785), (152, 135270), (162, 126920), (167, 123120), (171, 120240), (180, 114228), (190, 108216), (216, 95190), (228, 90180), (240, 85671), (270, 76152), (285, 72144), (304, 67635), (324, 63460), (334, 61560), (342, 60120), (360, 57114), (380, 54108), (405, 50768), (432, 47595), (456, 45090), (501, 41040), (513, 40080), (540, 38076), (570, 36072), (648, 31730), (668, 30780), (684, 30060), (720, 28557), (760, 27054), (810, 25384), (835, 24624), (855, 24048), (912, 22545), (1002, 20520), (1026, 20040), (1080, 19038), (1140, 18036), (1296, 15865), (1336, 15390), (1368, 15030), (1503, 13680), (1520, 13527), (1539, 13360), (1620, 12692), (1670, 12312), (1710, 12024), (2004, 10260), (2052, 10020), (2160, 9519), (2280, 9018), (2505, 8208), (2565, 8016), (2672, 7695), (2736, 7515), (3006, 6840), (3078, 6680), (3173, 6480), (3240, 6346), (3340, 6156), (3420, 6012), (4008, 5130), (4104, 5010), (4509, 4560)]