18571930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:215

約数の個数: 64

約数和(自身を含む): 38787840

約数和(自身を除く): 20215910

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 73, 95, 103, 130, 146, 190, 206, 247, 365, 494, 515, 730, 949, 1030, 1235, 1339, 1387, 1898, 1957, 2470, 2678, 2774, 3914, 4745, 6695, 6935, 7519, 9490, 9785, 13390, 13870, 15038, 18031, 19570, 25441, 36062, 37595, 50882, 75190, 90155, 97747, 127205, 142861, 180310, 195494, 254410, 285722, 488735, 714305, 977470, 1428610, 1857193, 3714386, 9285965, 18571930]

約数ペア:

[(1, 18571930), (2, 9285965), (5, 3714386), (10, 1857193), (13, 1428610), (19, 977470), (26, 714305), (38, 488735), (65, 285722), (73, 254410), (95, 195494), (103, 180310), (130, 142861), (146, 127205), (190, 97747), (206, 90155), (247, 75190), (365, 50882), (494, 37595), (515, 36062), (730, 25441), (949, 19570), (1030, 18031), (1235, 15038), (1339, 13870), (1387, 13390), (1898, 9785), (1957, 9490), (2470, 7519), (2678, 6935), (2774, 6695), (3914, 4745)]