25819280

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:432

約数の個数: 80

約数和(自身を含む): 64281600

約数和(自身を除く): 38462320

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, 359, 464, 496, 580, 620, 718, 899, 1160, 1240, 1436, 1795, 1798, 2320, 2480, 2872, 3590, 3596, 4495, 5744, 7180, 7192, 8990, 10411, 11129, 14360, 14384, 17980, 20822, 22258, 28720, 35960, 41644, 44516, 52055, 55645, 71920, 83288, 89032, 104110, 111290, 166576, 178064, 208220, 222580, 322741, 416440, 445160, 645482, 832880, 890320, 1290964, 1613705, 2581928, 3227410, 5163856, 6454820, 12909640, 25819280]

約数ペア:

[(1, 25819280), (2, 12909640), (4, 6454820), (5, 5163856), (8, 3227410), (10, 2581928), (16, 1613705), (20, 1290964), (29, 890320), (31, 832880), (40, 645482), (58, 445160), (62, 416440), (80, 322741), (116, 222580), (124, 208220), (145, 178064), (155, 166576), (232, 111290), (248, 104110), (290, 89032), (310, 83288), (359, 71920), (464, 55645), (496, 52055), (580, 44516), (620, 41644), (718, 35960), (899, 28720), (1160, 22258), (1240, 20822), (1436, 17980), (1795, 14384), (1798, 14360), (2320, 11129), (2480, 10411), (2872, 8990), (3590, 7192), (3596, 7180), (4495, 5744)]