20147950784

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{1297}}^1\times {\mathrm{18671}}^1$

素因数の和:19993

約数の個数: 56

約数和(自身を含む): 43092063168

約数和(自身を除く): 22944112384

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 1297, 2594, 5188, 10376, 16861, 18671, 20752, 33722, 37342, 41504, 67444, 74684, 83008, 134888, 149368, 242723, 269776, 298736, 485446, 539552, 597472, 970892, 1079104, 1194944, 1941784, 3883568, 7767136, 15534272, 24216287, 48432574, 96865148, 193730296, 314811731, 387460592, 629623462, 774921184, 1259246924, 1549842368, 2518493848, 5036987696, 10073975392, 20147950784]

約数ペア:

[(1, 20147950784), (2, 10073975392), (4, 5036987696), (8, 2518493848), (13, 1549842368), (16, 1259246924), (26, 774921184), (32, 629623462), (52, 387460592), (64, 314811731), (104, 193730296), (208, 96865148), (416, 48432574), (832, 24216287), (1297, 15534272), (2594, 7767136), (5188, 3883568), (10376, 1941784), (16861, 1194944), (18671, 1079104), (20752, 970892), (33722, 597472), (37342, 539552), (41504, 485446), (67444, 298736), (74684, 269776), (83008, 242723), (134888, 149368)]