67661920

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:248

約数の個数: 96

約数和(自身を含む): 166561920

約数和(自身を除く): 98900000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 79, 80, 101, 106, 158, 160, 202, 212, 265, 316, 395, 404, 424, 505, 530, 632, 790, 808, 848, 1010, 1060, 1264, 1580, 1616, 1696, 2020, 2120, 2528, 3160, 3232, 4040, 4187, 4240, 5353, 6320, 7979, 8080, 8374, 8480, 10706, 12640, 15958, 16160, 16748, 20935, 21412, 26765, 31916, 33496, 39895, 41870, 42824, 53530, 63832, 66992, 79790, 83740, 85648, 107060, 127664, 133984, 159580, 167480, 171296, 214120, 255328, 319160, 334960, 422887, 428240, 638320, 669920, 845774, 856480, 1276640, 1691548, 2114435, 3383096, 4228870, 6766192, 8457740, 13532384, 16915480, 33830960, 67661920]

約数ペア:

[(1, 67661920), (2, 33830960), (4, 16915480), (5, 13532384), (8, 8457740), (10, 6766192), (16, 4228870), (20, 3383096), (32, 2114435), (40, 1691548), (53, 1276640), (79, 856480), (80, 845774), (101, 669920), (106, 638320), (158, 428240), (160, 422887), (202, 334960), (212, 319160), (265, 255328), (316, 214120), (395, 171296), (404, 167480), (424, 159580), (505, 133984), (530, 127664), (632, 107060), (790, 85648), (808, 83740), (848, 79790), (1010, 66992), (1060, 63832), (1264, 53530), (1580, 42824), (1616, 41870), (1696, 39895), (2020, 33496), (2120, 31916), (2528, 26765), (3160, 21412), (3232, 20935), (4040, 16748), (4187, 16160), (4240, 15958), (5353, 12640), (6320, 10706), (7979, 8480), (8080, 8374)]