28605220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{101}}^1$

素因数の和:158

約数の個数: 108

約数和(自身を含む): 74965716

約数和(自身を除く): 46360496

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 101, 119, 140, 170, 196, 202, 238, 245, 289, 340, 404, 476, 490, 505, 578, 595, 707, 833, 980, 1010, 1156, 1190, 1414, 1445, 1666, 1717, 2020, 2023, 2380, 2828, 2890, 3332, 3434, 3535, 4046, 4165, 4949, 5780, 6868, 7070, 8092, 8330, 8585, 9898, 10115, 12019, 14140, 14161, 16660, 17170, 19796, 20230, 24038, 24745, 28322, 29189, 34340, 40460, 48076, 49490, 56644, 58378, 60095, 70805, 84133, 98980, 116756, 120190, 141610, 145945, 168266, 204323, 240380, 283220, 291890, 336532, 408646, 420665, 583780, 817292, 841330, 1021615, 1430261, 1682660, 2043230, 2860522, 4086460, 5721044, 7151305, 14302610, 28605220]

約数ペア:

[(1, 28605220), (2, 14302610), (4, 7151305), (5, 5721044), (7, 4086460), (10, 2860522), (14, 2043230), (17, 1682660), (20, 1430261), (28, 1021615), (34, 841330), (35, 817292), (49, 583780), (68, 420665), (70, 408646), (85, 336532), (98, 291890), (101, 283220), (119, 240380), (140, 204323), (170, 168266), (196, 145945), (202, 141610), (238, 120190), (245, 116756), (289, 98980), (340, 84133), (404, 70805), (476, 60095), (490, 58378), (505, 56644), (578, 49490), (595, 48076), (707, 40460), (833, 34340), (980, 29189), (1010, 28322), (1156, 24745), (1190, 24038), (1414, 20230), (1445, 19796), (1666, 17170), (1717, 16660), (2020, 14161), (2023, 14140), (2380, 12019), (2828, 10115), (2890, 9898), (3332, 8585), (3434, 8330), (3535, 8092), (4046, 7070), (4165, 6868), (4949, 5780)]