18501340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6469}}^1$

素因数の和:6502

約数の個数: 48

約数和(自身を含む): 45652320

約数和(自身を除く): 27150980

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 6469, 12938, 25876, 32345, 64690, 71159, 84097, 129380, 142318, 168194, 284636, 336388, 355795, 420485, 711590, 840970, 925067, 1423180, 1681940, 1850134, 3700268, 4625335, 9250670, 18501340]

約数ペア:

[(1, 18501340), (2, 9250670), (4, 4625335), (5, 3700268), (10, 1850134), (11, 1681940), (13, 1423180), (20, 925067), (22, 840970), (26, 711590), (44, 420485), (52, 355795), (55, 336388), (65, 284636), (110, 168194), (130, 142318), (143, 129380), (220, 84097), (260, 71159), (286, 64690), (572, 32345), (715, 25876), (1430, 12938), (2860, 6469)]