91878880

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1987}}^1$

素因数の和:2036

約数の個数: 72

約数和(自身を含む): 230699448

約数和(自身を除く): 138820568

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 289, 340, 544, 578, 680, 1156, 1360, 1445, 1987, 2312, 2720, 2890, 3974, 4624, 5780, 7948, 9248, 9935, 11560, 15896, 19870, 23120, 31792, 33779, 39740, 46240, 63584, 67558, 79480, 135116, 158960, 168895, 270232, 317920, 337790, 540464, 574243, 675580, 1080928, 1148486, 1351160, 2296972, 2702320, 2871215, 4593944, 5404640, 5742430, 9187888, 11484860, 18375776, 22969720, 45939440, 91878880]

約数ペア:

[(1, 91878880), (2, 45939440), (4, 22969720), (5, 18375776), (8, 11484860), (10, 9187888), (16, 5742430), (17, 5404640), (20, 4593944), (32, 2871215), (34, 2702320), (40, 2296972), (68, 1351160), (80, 1148486), (85, 1080928), (136, 675580), (160, 574243), (170, 540464), (272, 337790), (289, 317920), (340, 270232), (544, 168895), (578, 158960), (680, 135116), (1156, 79480), (1360, 67558), (1445, 63584), (1987, 46240), (2312, 39740), (2720, 33779), (2890, 31792), (3974, 23120), (4624, 19870), (5780, 15896), (7948, 11560), (9248, 9935)]