28174860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{379}}^1$

素因数の和:460

約数の個数: 144

約数和(自身を含む): 99590400

約数和(自身を除く): 71415540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 59, 60, 63, 70, 84, 90, 105, 118, 126, 140, 177, 180, 210, 236, 252, 295, 315, 354, 379, 413, 420, 531, 590, 630, 708, 758, 826, 885, 1062, 1137, 1180, 1239, 1260, 1516, 1652, 1770, 1895, 2065, 2124, 2274, 2478, 2653, 2655, 3411, 3540, 3717, 3790, 4130, 4548, 4956, 5306, 5310, 5685, 6195, 6822, 7434, 7580, 7959, 8260, 10612, 10620, 11370, 12390, 13265, 13644, 14868, 15918, 17055, 18585, 22361, 22740, 23877, 24780, 26530, 31836, 34110, 37170, 39795, 44722, 47754, 53060, 67083, 68220, 74340, 79590, 89444, 95508, 111805, 119385, 134166, 156527, 159180, 201249, 223610, 238770, 268332, 313054, 335415, 402498, 447220, 469581, 477540, 626108, 670830, 782635, 804996, 939162, 1006245, 1341660, 1408743, 1565270, 1878324, 2012490, 2347905, 2817486, 3130540, 4024980, 4695810, 5634972, 7043715, 9391620, 14087430, 28174860]

約数ペア:

[(1, 28174860), (2, 14087430), (3, 9391620), (4, 7043715), (5, 5634972), (6, 4695810), (7, 4024980), (9, 3130540), (10, 2817486), (12, 2347905), (14, 2012490), (15, 1878324), (18, 1565270), (20, 1408743), (21, 1341660), (28, 1006245), (30, 939162), (35, 804996), (36, 782635), (42, 670830), (45, 626108), (59, 477540), (60, 469581), (63, 447220), (70, 402498), (84, 335415), (90, 313054), (105, 268332), (118, 238770), (126, 223610), (140, 201249), (177, 159180), (180, 156527), (210, 134166), (236, 119385), (252, 111805), (295, 95508), (315, 89444), (354, 79590), (379, 74340), (413, 68220), (420, 67083), (531, 53060), (590, 47754), (630, 44722), (708, 39795), (758, 37170), (826, 34110), (885, 31836), (1062, 26530), (1137, 24780), (1180, 23877), (1239, 22740), (1260, 22361), (1516, 18585), (1652, 17055), (1770, 15918), (1895, 14868), (2065, 13644), (2124, 13265), (2274, 12390), (2478, 11370), (2653, 10620), (2655, 10612), (3411, 8260), (3540, 7959), (3717, 7580), (3790, 7434), (4130, 6822), (4548, 6195), (4956, 5685), (5306, 5310)]