28488668

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:151

約数の個数: 72

約数和(自身を含む): 59581872

約数和(自身を除く): 31093204

約数列:

[1, 2, 4, 13, 17, 26, 34, 37, 52, 67, 68, 74, 134, 148, 169, 221, 268, 338, 442, 481, 629, 676, 871, 884, 962, 1139, 1258, 1742, 1924, 2278, 2479, 2516, 2873, 3484, 4556, 4958, 5746, 6253, 8177, 9916, 11323, 11492, 12506, 14807, 16354, 22646, 25012, 29614, 32227, 32708, 42143, 45292, 59228, 64454, 84286, 106301, 128908, 168572, 192491, 212602, 384982, 418951, 425204, 547859, 769964, 837902, 1095718, 1675804, 2191436, 7122167, 14244334, 28488668]

約数ペア:

[(1, 28488668), (2, 14244334), (4, 7122167), (13, 2191436), (17, 1675804), (26, 1095718), (34, 837902), (37, 769964), (52, 547859), (67, 425204), (68, 418951), (74, 384982), (134, 212602), (148, 192491), (169, 168572), (221, 128908), (268, 106301), (338, 84286), (442, 64454), (481, 59228), (629, 45292), (676, 42143), (871, 32708), (884, 32227), (962, 29614), (1139, 25012), (1258, 22646), (1742, 16354), (1924, 14807), (2278, 12506), (2479, 11492), (2516, 11323), (2873, 9916), (3484, 8177), (4556, 6253), (4958, 5746)]