81197680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1129}}^1$

素因数の和:1202

約数の個数: 80

約数和(自身を含む): 201772800

約数和(自身を除く): 120575120

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, 464, 496, 580, 620, 899, 1129, 1160, 1240, 1798, 2258, 2320, 2480, 3596, 4495, 4516, 5645, 7192, 8990, 9032, 11290, 14384, 17980, 18064, 22580, 32741, 34999, 35960, 45160, 65482, 69998, 71920, 90320, 130964, 139996, 163705, 174995, 261928, 279992, 327410, 349990, 523856, 559984, 654820, 699980, 1014971, 1309640, 1399960, 2029942, 2619280, 2799920, 4059884, 5074855, 8119768, 10149710, 16239536, 20299420, 40598840, 81197680]

約数ペア:

[(1, 81197680), (2, 40598840), (4, 20299420), (5, 16239536), (8, 10149710), (10, 8119768), (16, 5074855), (20, 4059884), (29, 2799920), (31, 2619280), (40, 2029942), (58, 1399960), (62, 1309640), (80, 1014971), (116, 699980), (124, 654820), (145, 559984), (155, 523856), (232, 349990), (248, 327410), (290, 279992), (310, 261928), (464, 174995), (496, 163705), (580, 139996), (620, 130964), (899, 90320), (1129, 71920), (1160, 69998), (1240, 65482), (1798, 45160), (2258, 35960), (2320, 34999), (2480, 32741), (3596, 22580), (4495, 18064), (4516, 17980), (5645, 14384), (7192, 11290), (8990, 9032)]