90491680

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:171

約数の個数: 144

約数和(自身を含む): 241375680

約数和(自身を除く): 150884000

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 68, 76, 80, 85, 95, 103, 136, 152, 160, 170, 190, 206, 272, 289, 304, 323, 340, 380, 412, 515, 544, 578, 608, 646, 680, 760, 824, 1030, 1156, 1292, 1360, 1445, 1520, 1615, 1648, 1751, 1957, 2060, 2312, 2584, 2720, 2890, 3040, 3230, 3296, 3502, 3914, 4120, 4624, 5168, 5491, 5780, 6460, 7004, 7828, 8240, 8755, 9248, 9785, 10336, 10982, 11560, 12920, 14008, 15656, 16480, 17510, 19570, 21964, 23120, 25840, 27455, 28016, 29767, 31312, 33269, 35020, 39140, 43928, 46240, 51680, 54910, 56032, 59534, 62624, 66538, 70040, 78280, 87856, 109820, 119068, 133076, 140080, 148835, 156560, 166345, 175712, 219640, 238136, 266152, 280160, 297670, 313120, 332690, 439280, 476272, 532304, 565573, 595340, 665380, 878560, 952544, 1064608, 1131146, 1190680, 1330760, 2262292, 2381360, 2661520, 2827865, 4524584, 4762720, 5323040, 5655730, 9049168, 11311460, 18098336, 22622920, 45245840, 90491680]

約数ペア:

[(1, 90491680), (2, 45245840), (4, 22622920), (5, 18098336), (8, 11311460), (10, 9049168), (16, 5655730), (17, 5323040), (19, 4762720), (20, 4524584), (32, 2827865), (34, 2661520), (38, 2381360), (40, 2262292), (68, 1330760), (76, 1190680), (80, 1131146), (85, 1064608), (95, 952544), (103, 878560), (136, 665380), (152, 595340), (160, 565573), (170, 532304), (190, 476272), (206, 439280), (272, 332690), (289, 313120), (304, 297670), (323, 280160), (340, 266152), (380, 238136), (412, 219640), (515, 175712), (544, 166345), (578, 156560), (608, 148835), (646, 140080), (680, 133076), (760, 119068), (824, 109820), (1030, 87856), (1156, 78280), (1292, 70040), (1360, 66538), (1445, 62624), (1520, 59534), (1615, 56032), (1648, 54910), (1751, 51680), (1957, 46240), (2060, 43928), (2312, 39140), (2584, 35020), (2720, 33269), (2890, 31312), (3040, 29767), (3230, 28016), (3296, 27455), (3502, 25840), (3914, 23120), (4120, 21964), (4624, 19570), (5168, 17510), (5491, 16480), (5780, 15656), (6460, 14008), (7004, 12920), (7828, 11560), (8240, 10982), (8755, 10336), (9248, 9785)]