18219760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17519}}^1$

素因数の和:17545

約数の個数: 40

約数和(自身を含む): 45622080

約数和(自身を除く): 27402320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17519, 35038, 70076, 87595, 140152, 175190, 227747, 280304, 350380, 455494, 700760, 910988, 1138735, 1401520, 1821976, 2277470, 3643952, 4554940, 9109880, 18219760]

約数ペア:

[(1, 18219760), (2, 9109880), (4, 4554940), (5, 3643952), (8, 2277470), (10, 1821976), (13, 1401520), (16, 1138735), (20, 910988), (26, 700760), (40, 455494), (52, 350380), (65, 280304), (80, 227747), (104, 175190), (130, 140152), (208, 87595), (260, 70076), (520, 35038), (1040, 17519)]