20749140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6067}}^1$

素因数の和:6101

約数の個数: 72

約数和(自身を含む): 66262560

約数和(自身を除く): 45513420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 6067, 12134, 18201, 24268, 30335, 36402, 54603, 60670, 72804, 91005, 109206, 115273, 121340, 182010, 218412, 230546, 273015, 345819, 364020, 461092, 546030, 576365, 691638, 1037457, 1092060, 1152730, 1383276, 1729095, 2074914, 2305460, 3458190, 4149828, 5187285, 6916380, 10374570, 20749140]

約数ペア:

[(1, 20749140), (2, 10374570), (3, 6916380), (4, 5187285), (5, 4149828), (6, 3458190), (9, 2305460), (10, 2074914), (12, 1729095), (15, 1383276), (18, 1152730), (19, 1092060), (20, 1037457), (30, 691638), (36, 576365), (38, 546030), (45, 461092), (57, 364020), (60, 345819), (76, 273015), (90, 230546), (95, 218412), (114, 182010), (171, 121340), (180, 115273), (190, 109206), (228, 91005), (285, 72804), (342, 60670), (380, 54603), (570, 36402), (684, 30335), (855, 24268), (1140, 18201), (1710, 12134), (3420, 6067)]