39928240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{157}}^1$

素因数の和:215

約数の個数: 120

約数和(自身を含む): 108265392

約数和(自身を除く): 68337152

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 157, 170, 176, 187, 220, 272, 289, 314, 340, 374, 440, 578, 628, 680, 748, 785, 880, 935, 1156, 1256, 1360, 1445, 1496, 1570, 1727, 1870, 2312, 2512, 2669, 2890, 2992, 3140, 3179, 3454, 3740, 4624, 5338, 5780, 6280, 6358, 6908, 7480, 8635, 10676, 11560, 12560, 12716, 13345, 13816, 14960, 15895, 17270, 21352, 23120, 25432, 26690, 27632, 29359, 31790, 34540, 42704, 45373, 50864, 53380, 58718, 63580, 69080, 90746, 106760, 117436, 127160, 138160, 146795, 181492, 213520, 226865, 234872, 254320, 293590, 362984, 453730, 469744, 499103, 587180, 725968, 907460, 998206, 1174360, 1814920, 1996412, 2348720, 2495515, 3629840, 3992824, 4991030, 7985648, 9982060, 19964120, 39928240]

約数ペア:

[(1, 39928240), (2, 19964120), (4, 9982060), (5, 7985648), (8, 4991030), (10, 3992824), (11, 3629840), (16, 2495515), (17, 2348720), (20, 1996412), (22, 1814920), (34, 1174360), (40, 998206), (44, 907460), (55, 725968), (68, 587180), (80, 499103), (85, 469744), (88, 453730), (110, 362984), (136, 293590), (157, 254320), (170, 234872), (176, 226865), (187, 213520), (220, 181492), (272, 146795), (289, 138160), (314, 127160), (340, 117436), (374, 106760), (440, 90746), (578, 69080), (628, 63580), (680, 58718), (748, 53380), (785, 50864), (880, 45373), (935, 42704), (1156, 34540), (1256, 31790), (1360, 29359), (1445, 27632), (1496, 26690), (1570, 25432), (1727, 23120), (1870, 21352), (2312, 17270), (2512, 15895), (2669, 14960), (2890, 13816), (2992, 13345), (3140, 12716), (3179, 12560), (3454, 11560), (3740, 10676), (4624, 8635), (5338, 7480), (5780, 6908), (6280, 6358)]