99654320

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:438

約数の個数: 80

約数和(自身を含む): 240707808

約数和(自身を除く): 141053488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 131, 148, 185, 257, 262, 296, 370, 514, 524, 592, 655, 740, 1028, 1048, 1285, 1310, 1480, 2056, 2096, 2570, 2620, 2960, 4112, 4847, 5140, 5240, 9509, 9694, 10280, 10480, 19018, 19388, 20560, 24235, 33667, 38036, 38776, 47545, 48470, 67334, 76072, 77552, 95090, 96940, 134668, 152144, 168335, 190180, 193880, 269336, 336670, 380360, 387760, 538672, 673340, 760720, 1245679, 1346680, 2491358, 2693360, 4982716, 6228395, 9965432, 12456790, 19930864, 24913580, 49827160, 99654320]

約数ペア:

[(1, 99654320), (2, 49827160), (4, 24913580), (5, 19930864), (8, 12456790), (10, 9965432), (16, 6228395), (20, 4982716), (37, 2693360), (40, 2491358), (74, 1346680), (80, 1245679), (131, 760720), (148, 673340), (185, 538672), (257, 387760), (262, 380360), (296, 336670), (370, 269336), (514, 193880), (524, 190180), (592, 168335), (655, 152144), (740, 134668), (1028, 96940), (1048, 95090), (1285, 77552), (1310, 76072), (1480, 67334), (2056, 48470), (2096, 47545), (2570, 38776), (2620, 38036), (2960, 33667), (4112, 24235), (4847, 20560), (5140, 19388), (5240, 19018), (9509, 10480), (9694, 10280)]