28611760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:266

約数の個数: 80

約数和(自身を含む): 69995520

約数和(自身を除く): 41383760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 83, 124, 139, 155, 166, 248, 278, 310, 332, 415, 496, 556, 620, 664, 695, 830, 1112, 1240, 1328, 1390, 1660, 2224, 2480, 2573, 2780, 3320, 4309, 5146, 5560, 6640, 8618, 10292, 11120, 11537, 12865, 17236, 20584, 21545, 23074, 25730, 34472, 41168, 43090, 46148, 51460, 57685, 68944, 86180, 92296, 102920, 115370, 172360, 184592, 205840, 230740, 344720, 357647, 461480, 715294, 922960, 1430588, 1788235, 2861176, 3576470, 5722352, 7152940, 14305880, 28611760]

約数ペア:

[(1, 28611760), (2, 14305880), (4, 7152940), (5, 5722352), (8, 3576470), (10, 2861176), (16, 1788235), (20, 1430588), (31, 922960), (40, 715294), (62, 461480), (80, 357647), (83, 344720), (124, 230740), (139, 205840), (155, 184592), (166, 172360), (248, 115370), (278, 102920), (310, 92296), (332, 86180), (415, 68944), (496, 57685), (556, 51460), (620, 46148), (664, 43090), (695, 41168), (830, 34472), (1112, 25730), (1240, 23074), (1328, 21545), (1390, 20584), (1660, 17236), (2224, 12865), (2480, 11537), (2573, 11120), (2780, 10292), (3320, 8618), (4309, 6640), (5146, 5560)]