165869840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66883}}^1$

素因数の和:66927

約数の個数: 40

約数和(自身を含む): 398093568

約数和(自身を除く): 232223728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 66883, 133766, 267532, 334415, 535064, 668830, 1070128, 1337660, 2073373, 2675320, 4146746, 5350640, 8293492, 10366865, 16586984, 20733730, 33173968, 41467460, 82934920, 165869840]

約数ペア:

[(1, 165869840), (2, 82934920), (4, 41467460), (5, 33173968), (8, 20733730), (10, 16586984), (16, 10366865), (20, 8293492), (31, 5350640), (40, 4146746), (62, 2675320), (80, 2073373), (124, 1337660), (155, 1070128), (248, 668830), (310, 535064), (496, 334415), (620, 267532), (1240, 133766), (2480, 66883)]