28552240

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:470

約数の個数: 80

約数和(自身を含む): 71066880

約数和(自身を除く): 42514640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 40, 58, 62, 80, 116, 124, 145, 155, 232, 248, 290, 310, 397, 464, 496, 580, 620, 794, 899, 1160, 1240, 1588, 1798, 1985, 2320, 2480, 3176, 3596, 3970, 4495, 6352, 7192, 7940, 8990, 11513, 12307, 14384, 15880, 17980, 23026, 24614, 31760, 35960, 46052, 49228, 57565, 61535, 71920, 92104, 98456, 115130, 123070, 184208, 196912, 230260, 246140, 356903, 460520, 492280, 713806, 921040, 984560, 1427612, 1784515, 2855224, 3569030, 5710448, 7138060, 14276120, 28552240]

約数ペア:

[(1, 28552240), (2, 14276120), (4, 7138060), (5, 5710448), (8, 3569030), (10, 2855224), (16, 1784515), (20, 1427612), (29, 984560), (31, 921040), (40, 713806), (58, 492280), (62, 460520), (80, 356903), (116, 246140), (124, 230260), (145, 196912), (155, 184208), (232, 123070), (248, 115130), (290, 98456), (310, 92104), (397, 71920), (464, 61535), (496, 57565), (580, 49228), (620, 46052), (794, 35960), (899, 31760), (1160, 24614), (1240, 23026), (1588, 17980), (1798, 15880), (1985, 14384), (2320, 12307), (2480, 11513), (3176, 8990), (3596, 7940), (3970, 7192), (4495, 6352)]