291288880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:383

約数の個数: 120

約数和(自身を含む): 738671472

約数和(自身を除く): 447382592

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 43, 68, 80, 85, 86, 136, 170, 172, 215, 272, 289, 293, 340, 344, 430, 578, 586, 680, 688, 731, 860, 1156, 1172, 1360, 1445, 1462, 1465, 1720, 2312, 2344, 2890, 2924, 2930, 3440, 3655, 4624, 4688, 4981, 5780, 5848, 5860, 7310, 9962, 11560, 11696, 11720, 12427, 12599, 14620, 19924, 23120, 23440, 24854, 24905, 25198, 29240, 39848, 49708, 49810, 50396, 58480, 62135, 62995, 79696, 84677, 99416, 99620, 100792, 124270, 125990, 169354, 198832, 199240, 201584, 214183, 248540, 251980, 338708, 398480, 423385, 428366, 497080, 503960, 677416, 846770, 856732, 994160, 1007920, 1070915, 1354832, 1693540, 1713464, 2141830, 3387080, 3426928, 3641111, 4283660, 6774160, 7282222, 8567320, 14564444, 17134640, 18205555, 29128888, 36411110, 58257776, 72822220, 145644440, 291288880]

約数ペア:

[(1, 291288880), (2, 145644440), (4, 72822220), (5, 58257776), (8, 36411110), (10, 29128888), (16, 18205555), (17, 17134640), (20, 14564444), (34, 8567320), (40, 7282222), (43, 6774160), (68, 4283660), (80, 3641111), (85, 3426928), (86, 3387080), (136, 2141830), (170, 1713464), (172, 1693540), (215, 1354832), (272, 1070915), (289, 1007920), (293, 994160), (340, 856732), (344, 846770), (430, 677416), (578, 503960), (586, 497080), (680, 428366), (688, 423385), (731, 398480), (860, 338708), (1156, 251980), (1172, 248540), (1360, 214183), (1445, 201584), (1462, 199240), (1465, 198832), (1720, 169354), (2312, 125990), (2344, 124270), (2890, 100792), (2924, 99620), (2930, 99416), (3440, 84677), (3655, 79696), (4624, 62995), (4688, 62135), (4981, 58480), (5780, 50396), (5848, 49810), (5860, 49708), (7310, 39848), (9962, 29240), (11560, 25198), (11696, 24905), (11720, 24854), (12427, 23440), (12599, 23120), (14620, 19924)]