157338640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{63443}}^1$

素因数の和:63487

約数の個数: 40

約数和(自身を含む): 377618688

約数和(自身を除く): 220280048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 63443, 126886, 253772, 317215, 507544, 634430, 1015088, 1268860, 1966733, 2537720, 3933466, 5075440, 7866932, 9833665, 15733864, 19667330, 31467728, 39334660, 78669320, 157338640]

約数ペア:

[(1, 157338640), (2, 78669320), (4, 39334660), (5, 31467728), (8, 19667330), (10, 15733864), (16, 9833665), (20, 7866932), (31, 5075440), (40, 3933466), (62, 2537720), (80, 1966733), (124, 1268860), (155, 1015088), (248, 634430), (310, 507544), (496, 317215), (620, 253772), (1240, 126886), (2480, 63443)]