19725390

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1699}}^1$

素因数の和:1758

約数の個数: 64

約数和(自身を含む): 53856000

約数和(自身を除く): 34130610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 43, 45, 54, 86, 90, 129, 135, 215, 258, 270, 387, 430, 645, 774, 1161, 1290, 1699, 1935, 2322, 3398, 3870, 5097, 5805, 8495, 10194, 11610, 15291, 16990, 25485, 30582, 45873, 50970, 73057, 76455, 91746, 146114, 152910, 219171, 229365, 365285, 438342, 458730, 657513, 730570, 1095855, 1315026, 1972539, 2191710, 3287565, 3945078, 6575130, 9862695, 19725390]

約数ペア:

[(1, 19725390), (2, 9862695), (3, 6575130), (5, 3945078), (6, 3287565), (9, 2191710), (10, 1972539), (15, 1315026), (18, 1095855), (27, 730570), (30, 657513), (43, 458730), (45, 438342), (54, 365285), (86, 229365), (90, 219171), (129, 152910), (135, 146114), (215, 91746), (258, 76455), (270, 73057), (387, 50970), (430, 45873), (645, 30582), (774, 25485), (1161, 16990), (1290, 15291), (1699, 11610), (1935, 10194), (2322, 8495), (3398, 5805), (3870, 5097)]