28044380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{811}}^1$

素因数の和:859

約数の個数: 96

約数和(自身を含む): 76392960

約数和(自身を除く): 48348580

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 52, 65, 70, 76, 91, 95, 130, 133, 140, 182, 190, 247, 260, 266, 364, 380, 455, 494, 532, 665, 811, 910, 988, 1235, 1330, 1622, 1729, 1820, 2470, 2660, 3244, 3458, 4055, 4940, 5677, 6916, 8110, 8645, 10543, 11354, 15409, 16220, 17290, 21086, 22708, 28385, 30818, 34580, 42172, 52715, 56770, 61636, 73801, 77045, 105430, 107863, 113540, 147602, 154090, 200317, 210860, 215726, 295204, 308180, 369005, 400634, 431452, 539315, 738010, 801268, 1001585, 1078630, 1402219, 1476020, 2003170, 2157260, 2804438, 4006340, 5608876, 7011095, 14022190, 28044380]

約数ペア:

[(1, 28044380), (2, 14022190), (4, 7011095), (5, 5608876), (7, 4006340), (10, 2804438), (13, 2157260), (14, 2003170), (19, 1476020), (20, 1402219), (26, 1078630), (28, 1001585), (35, 801268), (38, 738010), (52, 539315), (65, 431452), (70, 400634), (76, 369005), (91, 308180), (95, 295204), (130, 215726), (133, 210860), (140, 200317), (182, 154090), (190, 147602), (247, 113540), (260, 107863), (266, 105430), (364, 77045), (380, 73801), (455, 61636), (494, 56770), (532, 52715), (665, 42172), (811, 34580), (910, 30818), (988, 28385), (1235, 22708), (1330, 21086), (1622, 17290), (1729, 16220), (1820, 15409), (2470, 11354), (2660, 10543), (3244, 8645), (3458, 8110), (4055, 6916), (4940, 5677)]