28726620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2833}}^1$

素因数の和:2871

約数の個数: 72

約数和(自身を含む): 87128496

約数和(自身を除く): 58401876

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2535, 2833, 3380, 5070, 5666, 8499, 10140, 11332, 14165, 16998, 28330, 33996, 36829, 42495, 56660, 73658, 84990, 110487, 147316, 169980, 184145, 220974, 368290, 441948, 478777, 552435, 736580, 957554, 1104870, 1436331, 1915108, 2209740, 2393885, 2872662, 4787770, 5745324, 7181655, 9575540, 14363310, 28726620]

約数ペア:

[(1, 28726620), (2, 14363310), (3, 9575540), (4, 7181655), (5, 5745324), (6, 4787770), (10, 2872662), (12, 2393885), (13, 2209740), (15, 1915108), (20, 1436331), (26, 1104870), (30, 957554), (39, 736580), (52, 552435), (60, 478777), (65, 441948), (78, 368290), (130, 220974), (156, 184145), (169, 169980), (195, 147316), (260, 110487), (338, 84990), (390, 73658), (507, 56660), (676, 42495), (780, 36829), (845, 33996), (1014, 28330), (1690, 16998), (2028, 14165), (2535, 11332), (2833, 10140), (3380, 8499), (5070, 5666)]