385046780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{2351}}^1$

素因数の和:2810

約数の個数: 48

約数和(自身を含む): 853493760

約数和(自身を除く): 468446980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 431, 862, 1724, 2155, 2351, 4310, 4702, 8189, 8620, 9404, 11755, 16378, 23510, 32756, 40945, 44669, 47020, 81890, 89338, 163780, 178676, 223345, 446690, 893380, 1013281, 2026562, 4053124, 5066405, 10132810, 19252339, 20265620, 38504678, 77009356, 96261695, 192523390, 385046780]

約数ペア:

[(1, 385046780), (2, 192523390), (4, 96261695), (5, 77009356), (10, 38504678), (19, 20265620), (20, 19252339), (38, 10132810), (76, 5066405), (95, 4053124), (190, 2026562), (380, 1013281), (431, 893380), (862, 446690), (1724, 223345), (2155, 178676), (2351, 163780), (4310, 89338), (4702, 81890), (8189, 47020), (8620, 44669), (9404, 40945), (11755, 32756), (16378, 23510)]