878197580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{421}}^1$

素因数の和:627

約数の個数: 96

約数和(自身を含む): 2036700288

約数和(自身を除く): 1158502708

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 113, 130, 142, 226, 260, 284, 355, 421, 452, 565, 710, 842, 923, 1130, 1420, 1469, 1684, 1846, 2105, 2260, 2938, 3692, 4210, 4615, 5473, 5876, 7345, 8023, 8420, 9230, 10946, 14690, 16046, 18460, 21892, 27365, 29380, 29891, 32092, 40115, 47573, 54730, 59782, 80230, 95146, 104299, 109460, 119564, 149455, 160460, 190292, 208598, 237865, 298910, 388583, 417196, 475730, 521495, 597820, 618449, 777166, 951460, 1042990, 1236898, 1554332, 1942915, 2085980, 2473796, 3092245, 3377683, 3885830, 6184490, 6755366, 7771660, 12368980, 13510732, 16888415, 33776830, 43909879, 67553660, 87819758, 175639516, 219549395, 439098790, 878197580]

約数ペア:

[(1, 878197580), (2, 439098790), (4, 219549395), (5, 175639516), (10, 87819758), (13, 67553660), (20, 43909879), (26, 33776830), (52, 16888415), (65, 13510732), (71, 12368980), (113, 7771660), (130, 6755366), (142, 6184490), (226, 3885830), (260, 3377683), (284, 3092245), (355, 2473796), (421, 2085980), (452, 1942915), (565, 1554332), (710, 1236898), (842, 1042990), (923, 951460), (1130, 777166), (1420, 618449), (1469, 597820), (1684, 521495), (1846, 475730), (2105, 417196), (2260, 388583), (2938, 298910), (3692, 237865), (4210, 208598), (4615, 190292), (5473, 160460), (5876, 149455), (7345, 119564), (8023, 109460), (8420, 104299), (9230, 95146), (10946, 80230), (14690, 59782), (16046, 54730), (18460, 47573), (21892, 40115), (27365, 32092), (29380, 29891)]