81739140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10243}}^1$

素因数の和:10281

約数の個数: 96

約数和(自身を含む): 275358720

約数和(自身を除く): 193619580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3990, 7980, 10243, 20486, 30729, 40972, 51215, 61458, 71701, 102430, 122916, 143402, 153645, 194617, 204860, 215103, 286804, 307290, 358505, 389234, 430206, 583851, 614580, 717010, 778468, 860412, 973085, 1075515, 1167702, 1362319, 1434020, 1946170, 2151030, 2335404, 2724638, 2919255, 3892340, 4086957, 4302060, 5449276, 5838510, 6811595, 8173914, 11677020, 13623190, 16347828, 20434785, 27246380, 40869570, 81739140]

約数ペア:

[(1, 81739140), (2, 40869570), (3, 27246380), (4, 20434785), (5, 16347828), (6, 13623190), (7, 11677020), (10, 8173914), (12, 6811595), (14, 5838510), (15, 5449276), (19, 4302060), (20, 4086957), (21, 3892340), (28, 2919255), (30, 2724638), (35, 2335404), (38, 2151030), (42, 1946170), (57, 1434020), (60, 1362319), (70, 1167702), (76, 1075515), (84, 973085), (95, 860412), (105, 778468), (114, 717010), (133, 614580), (140, 583851), (190, 430206), (210, 389234), (228, 358505), (266, 307290), (285, 286804), (380, 215103), (399, 204860), (420, 194617), (532, 153645), (570, 143402), (665, 122916), (798, 102430), (1140, 71701), (1330, 61458), (1596, 51215), (1995, 40972), (2660, 30729), (3990, 20486), (7980, 10243)]