1618240040

素因数分解:

$2^3\times 5^1\times {\mathrm{2719}}^1\times {\mathrm{14879}}^1$

素因数の和:17609

約数の個数: 32

約数和(自身を含む): 3642624000

約数和(自身を除く): 2024383960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2719, 5438, 10876, 13595, 14879, 21752, 27190, 29758, 54380, 59516, 74395, 108760, 119032, 148790, 297580, 595160, 40456001, 80912002, 161824004, 202280005, 323648008, 404560010, 809120020, 1618240040]

約数ペア:

[(1, 1618240040), (2, 809120020), (4, 404560010), (5, 323648008), (8, 202280005), (10, 161824004), (20, 80912002), (40, 40456001), (2719, 595160), (5438, 297580), (10876, 148790), (13595, 119032), (14879, 108760), (21752, 74395), (27190, 59516), (29758, 54380)]