28074020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5683}}^1$

素因数の和:5724

約数の個数: 48

約数和(自身を含む): 66843840

約数和(自身を除く): 38769820

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 5683, 11366, 22732, 28415, 56830, 73879, 107977, 113660, 147758, 215954, 295516, 369395, 431908, 539885, 738790, 1079770, 1403701, 1477580, 2159540, 2807402, 5614804, 7018505, 14037010, 28074020]

約数ペア:

[(1, 28074020), (2, 14037010), (4, 7018505), (5, 5614804), (10, 2807402), (13, 2159540), (19, 1477580), (20, 1403701), (26, 1079770), (38, 738790), (52, 539885), (65, 431908), (76, 369395), (95, 295516), (130, 215954), (190, 147758), (247, 113660), (260, 107977), (380, 73879), (494, 56830), (988, 28415), (1235, 22732), (2470, 11366), (4940, 5683)]