145487960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{117329}}^1$

素因数の和:117371

約数の個数: 32

約数和(自身を含む): 337910400

約数和(自身を除く): 192422440

約数列:

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

約数ペア:

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