290975920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{117329}}^1$

素因数の和:117373

約数の個数: 40

約数和(自身を含む): 698348160

約数和(自身を除く): 407372240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 117329, 234658, 469316, 586645, 938632, 1173290, 1877264, 2346580, 3637199, 4693160, 7274398, 9386320, 14548796, 18185995, 29097592, 36371990, 58195184, 72743980, 145487960, 290975920]

約数ペア:

[(1, 290975920), (2, 145487960), (4, 72743980), (5, 58195184), (8, 36371990), (10, 29097592), (16, 18185995), (20, 14548796), (31, 9386320), (40, 7274398), (62, 4693160), (80, 3637199), (124, 2346580), (155, 1877264), (248, 1173290), (310, 938632), (496, 586645), (620, 469316), (1240, 234658), (2480, 117329)]