20803973128

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{811}}^1\times {\mathrm{1097}}^1$

素因数の和:2030

約数の個数: 64

約数和(自身を含む): 40655865600

約数和(自身を除く): 19851892472

約数列:

[1, 2, 4, 8, 37, 74, 79, 148, 158, 296, 316, 632, 811, 1097, 1622, 2194, 2923, 3244, 4388, 5846, 6488, 8776, 11692, 23384, 30007, 40589, 60014, 64069, 81178, 86663, 120028, 128138, 162356, 173326, 240056, 256276, 324712, 346652, 512552, 693304, 889667, 1779334, 2370553, 3206531, 3558668, 4741106, 6413062, 7117336, 9482212, 12826124, 18964424, 25652248, 32917679, 65835358, 70283693, 131670716, 140567386, 263341432, 281134772, 562269544, 2600496641, 5200993282, 10401986564, 20803973128]

約数ペア:

[(1, 20803973128), (2, 10401986564), (4, 5200993282), (8, 2600496641), (37, 562269544), (74, 281134772), (79, 263341432), (148, 140567386), (158, 131670716), (296, 70283693), (316, 65835358), (632, 32917679), (811, 25652248), (1097, 18964424), (1622, 12826124), (2194, 9482212), (2923, 7117336), (3244, 6413062), (4388, 4741106), (5846, 3558668), (6488, 3206531), (8776, 2370553), (11692, 1779334), (23384, 889667), (30007, 693304), (40589, 512552), (60014, 346652), (64069, 324712), (81178, 256276), (86663, 240056), (120028, 173326), (128138, 162356)]