87821320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:223

約数の個数: 96

約数和(自身を含む): 214850880

約数和(自身を除く): 127029560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 71, 85, 107, 136, 142, 170, 214, 284, 289, 340, 355, 428, 535, 568, 578, 680, 710, 856, 1070, 1156, 1207, 1420, 1445, 1819, 2140, 2312, 2414, 2840, 2890, 3638, 4280, 4828, 5780, 6035, 7276, 7597, 9095, 9656, 11560, 12070, 14552, 15194, 18190, 20519, 24140, 30388, 30923, 36380, 37985, 41038, 48280, 60776, 61846, 72760, 75970, 82076, 102595, 123692, 129149, 151940, 154615, 164152, 205190, 247384, 258298, 303880, 309230, 410380, 516596, 618460, 645745, 820760, 1033192, 1236920, 1291490, 2195533, 2582980, 4391066, 5165960, 8782132, 10977665, 17564264, 21955330, 43910660, 87821320]

約数ペア:

[(1, 87821320), (2, 43910660), (4, 21955330), (5, 17564264), (8, 10977665), (10, 8782132), (17, 5165960), (20, 4391066), (34, 2582980), (40, 2195533), (68, 1291490), (71, 1236920), (85, 1033192), (107, 820760), (136, 645745), (142, 618460), (170, 516596), (214, 410380), (284, 309230), (289, 303880), (340, 258298), (355, 247384), (428, 205190), (535, 164152), (568, 154615), (578, 151940), (680, 129149), (710, 123692), (856, 102595), (1070, 82076), (1156, 75970), (1207, 72760), (1420, 61846), (1445, 60776), (1819, 48280), (2140, 41038), (2312, 37985), (2414, 36380), (2840, 30923), (2890, 30388), (3638, 24140), (4280, 20519), (4828, 18190), (5780, 15194), (6035, 14552), (7276, 12070), (7597, 11560), (9095, 9656)]