28813960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:327

約数の個数: 96

約数和(自身を含む): 76970520

約数和(自身を除く): 48156560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 61, 70, 98, 122, 140, 196, 241, 244, 245, 280, 305, 392, 427, 482, 488, 490, 610, 854, 964, 980, 1205, 1220, 1687, 1708, 1928, 1960, 2135, 2410, 2440, 2989, 3374, 3416, 4270, 4820, 5978, 6748, 8435, 8540, 9640, 11809, 11956, 13496, 14701, 14945, 16870, 17080, 23618, 23912, 29402, 29890, 33740, 47236, 58804, 59045, 59780, 67480, 73505, 94472, 102907, 117608, 118090, 119560, 147010, 205814, 236180, 294020, 411628, 472360, 514535, 588040, 720349, 823256, 1029070, 1440698, 2058140, 2881396, 3601745, 4116280, 5762792, 7203490, 14406980, 28813960]

約数ペア:

[(1, 28813960), (2, 14406980), (4, 7203490), (5, 5762792), (7, 4116280), (8, 3601745), (10, 2881396), (14, 2058140), (20, 1440698), (28, 1029070), (35, 823256), (40, 720349), (49, 588040), (56, 514535), (61, 472360), (70, 411628), (98, 294020), (122, 236180), (140, 205814), (196, 147010), (241, 119560), (244, 118090), (245, 117608), (280, 102907), (305, 94472), (392, 73505), (427, 67480), (482, 59780), (488, 59045), (490, 58804), (610, 47236), (854, 33740), (964, 29890), (980, 29402), (1205, 23912), (1220, 23618), (1687, 17080), (1708, 16870), (1928, 14945), (1960, 14701), (2135, 13496), (2410, 11956), (2440, 11809), (2989, 9640), (3374, 8540), (3416, 8435), (4270, 6748), (4820, 5978)]