20649960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3019}}^1$

素因数の和:3055

約数の個数: 96

約数和(自身を含む): 70668000

約数和(自身を除く): 50018040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 180, 190, 228, 285, 342, 360, 380, 456, 570, 684, 760, 855, 1140, 1368, 1710, 2280, 3019, 3420, 6038, 6840, 9057, 12076, 15095, 18114, 24152, 27171, 30190, 36228, 45285, 54342, 57361, 60380, 72456, 90570, 108684, 114722, 120760, 135855, 172083, 181140, 217368, 229444, 271710, 286805, 344166, 362280, 458888, 516249, 543420, 573610, 688332, 860415, 1032498, 1086840, 1147220, 1376664, 1720830, 2064996, 2294440, 2581245, 3441660, 4129992, 5162490, 6883320, 10324980, 20649960]

約数ペア:

[(1, 20649960), (2, 10324980), (3, 6883320), (4, 5162490), (5, 4129992), (6, 3441660), (8, 2581245), (9, 2294440), (10, 2064996), (12, 1720830), (15, 1376664), (18, 1147220), (19, 1086840), (20, 1032498), (24, 860415), (30, 688332), (36, 573610), (38, 543420), (40, 516249), (45, 458888), (57, 362280), (60, 344166), (72, 286805), (76, 271710), (90, 229444), (95, 217368), (114, 181140), (120, 172083), (152, 135855), (171, 120760), (180, 114722), (190, 108684), (228, 90570), (285, 72456), (342, 60380), (360, 57361), (380, 54342), (456, 45285), (570, 36228), (684, 30190), (760, 27171), (855, 24152), (1140, 18114), (1368, 15095), (1710, 12076), (2280, 9057), (3019, 6840), (3420, 6038)]