7908940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1601}}^1$

素因数の和:1642

約数の個数: 48

約数和(自身を含む): 18839520

約数和(自身を除く): 10930580

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, 1601, 2470, 3202, 4940, 6404, 8005, 16010, 20813, 30419, 32020, 41626, 60838, 83252, 104065, 121676, 152095, 208130, 304190, 395447, 416260, 608380, 790894, 1581788, 1977235, 3954470, 7908940]

約数ペア:

[(1, 7908940), (2, 3954470), (4, 1977235), (5, 1581788), (10, 790894), (13, 608380), (19, 416260), (20, 395447), (26, 304190), (38, 208130), (52, 152095), (65, 121676), (76, 104065), (95, 83252), (130, 60838), (190, 41626), (247, 32020), (260, 30419), (380, 20813), (494, 16010), (988, 8005), (1235, 6404), (1601, 4940), (2470, 3202)]