20353360

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1$

素因数の和:356

約数の個数: 80

約数和(自身を含む): 50711040

約数和(自身を除く): 30357680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 40, 58, 62, 80, 116, 124, 145, 155, 232, 248, 283, 290, 310, 464, 496, 566, 580, 620, 899, 1132, 1160, 1240, 1415, 1798, 2264, 2320, 2480, 2830, 3596, 4495, 4528, 5660, 7192, 8207, 8773, 8990, 11320, 14384, 16414, 17546, 17980, 22640, 32828, 35092, 35960, 41035, 43865, 65656, 70184, 71920, 82070, 87730, 131312, 140368, 164140, 175460, 254417, 328280, 350920, 508834, 656560, 701840, 1017668, 1272085, 2035336, 2544170, 4070672, 5088340, 10176680, 20353360]

約数ペア:

[(1, 20353360), (2, 10176680), (4, 5088340), (5, 4070672), (8, 2544170), (10, 2035336), (16, 1272085), (20, 1017668), (29, 701840), (31, 656560), (40, 508834), (58, 350920), (62, 328280), (80, 254417), (116, 175460), (124, 164140), (145, 140368), (155, 131312), (232, 87730), (248, 82070), (283, 71920), (290, 70184), (310, 65656), (464, 43865), (496, 41035), (566, 35960), (580, 35092), (620, 32828), (899, 22640), (1132, 17980), (1160, 17546), (1240, 16414), (1415, 14384), (1798, 11320), (2264, 8990), (2320, 8773), (2480, 8207), (2830, 7192), (3596, 5660), (4495, 4528)]