87621920

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:131

約数の個数: 144

約数和(自身を含む): 229852728

約数和(自身を除く): 142230808

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 37, 38, 40, 41, 74, 76, 80, 82, 95, 148, 152, 160, 164, 185, 190, 205, 296, 304, 328, 361, 370, 380, 410, 592, 608, 656, 703, 722, 740, 760, 779, 820, 1184, 1312, 1406, 1444, 1480, 1517, 1520, 1558, 1640, 1805, 2812, 2888, 2960, 3034, 3040, 3116, 3280, 3515, 3610, 3895, 5624, 5776, 5920, 6068, 6232, 6560, 7030, 7220, 7585, 7790, 11248, 11552, 12136, 12464, 13357, 14060, 14440, 14801, 15170, 15580, 22496, 24272, 24928, 26714, 28120, 28823, 28880, 29602, 30340, 31160, 48544, 53428, 56240, 57646, 57760, 59204, 60680, 62320, 66785, 74005, 106856, 112480, 115292, 118408, 121360, 124640, 133570, 144115, 148010, 213712, 230584, 236816, 242720, 267140, 288230, 296020, 427424, 461168, 473632, 534280, 547637, 576460, 592040, 922336, 1068560, 1095274, 1152920, 1184080, 2137120, 2190548, 2305840, 2368160, 2738185, 4381096, 4611680, 5476370, 8762192, 10952740, 17524384, 21905480, 43810960, 87621920]

約数ペア:

[(1, 87621920), (2, 43810960), (4, 21905480), (5, 17524384), (8, 10952740), (10, 8762192), (16, 5476370), (19, 4611680), (20, 4381096), (32, 2738185), (37, 2368160), (38, 2305840), (40, 2190548), (41, 2137120), (74, 1184080), (76, 1152920), (80, 1095274), (82, 1068560), (95, 922336), (148, 592040), (152, 576460), (160, 547637), (164, 534280), (185, 473632), (190, 461168), (205, 427424), (296, 296020), (304, 288230), (328, 267140), (361, 242720), (370, 236816), (380, 230584), (410, 213712), (592, 148010), (608, 144115), (656, 133570), (703, 124640), (722, 121360), (740, 118408), (760, 115292), (779, 112480), (820, 106856), (1184, 74005), (1312, 66785), (1406, 62320), (1444, 60680), (1480, 59204), (1517, 57760), (1520, 57646), (1558, 56240), (1640, 53428), (1805, 48544), (2812, 31160), (2888, 30340), (2960, 29602), (3034, 28880), (3040, 28823), (3116, 28120), (3280, 26714), (3515, 24928), (3610, 24272), (3895, 22496), (5624, 15580), (5776, 15170), (5920, 14801), (6068, 14440), (6232, 14060), (6560, 13357), (7030, 12464), (7220, 12136), (7585, 11552), (7790, 11248)]