851566300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{991}}^1$

素因数の和:1679

約数の個数: 72

約数和(自身を含む): 1995066752

約数和(自身を除く): 1143500452

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 661, 991, 1300, 1322, 1982, 2644, 3305, 3964, 4955, 6610, 8593, 9910, 12883, 13220, 16525, 17186, 19820, 24775, 25766, 33050, 34372, 42965, 49550, 51532, 64415, 66100, 85930, 99100, 128830, 171860, 214825, 257660, 322075, 429650, 644150, 655051, 859300, 1288300, 1310102, 2620204, 3275255, 6550510, 8515663, 13101020, 16376275, 17031326, 32752550, 34062652, 42578315, 65505100, 85156630, 170313260, 212891575, 425783150, 851566300]

約数ペア:

[(1, 851566300), (2, 425783150), (4, 212891575), (5, 170313260), (10, 85156630), (13, 65505100), (20, 42578315), (25, 34062652), (26, 32752550), (50, 17031326), (52, 16376275), (65, 13101020), (100, 8515663), (130, 6550510), (260, 3275255), (325, 2620204), (650, 1310102), (661, 1288300), (991, 859300), (1300, 655051), (1322, 644150), (1982, 429650), (2644, 322075), (3305, 257660), (3964, 214825), (4955, 171860), (6610, 128830), (8593, 99100), (9910, 85930), (12883, 66100), (13220, 64415), (16525, 51532), (17186, 49550), (19820, 42965), (24775, 34372), (25766, 33050)]