78661856

素因数分解:

$2^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1$

素因数の和:281

約数の個数: 144

約数和(自身を含む): 206324496

約数和(自身を除く): 127662640

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 32, 34, 49, 52, 56, 68, 91, 98, 104, 112, 119, 136, 182, 196, 208, 221, 224, 227, 238, 272, 364, 392, 416, 442, 454, 476, 544, 637, 728, 784, 833, 884, 908, 952, 1274, 1456, 1547, 1568, 1589, 1666, 1768, 1816, 1904, 2548, 2912, 2951, 3094, 3178, 3332, 3536, 3632, 3808, 3859, 5096, 5902, 6188, 6356, 6664, 7072, 7264, 7718, 10192, 10829, 11123, 11804, 12376, 12712, 13328, 15436, 20384, 20657, 21658, 22246, 23608, 24752, 25424, 26656, 27013, 30872, 41314, 43316, 44492, 47216, 49504, 50167, 50848, 54026, 61744, 82628, 86632, 88984, 94432, 100334, 108052, 123488, 144599, 165256, 173264, 177968, 189091, 200668, 216104, 289198, 330512, 346528, 351169, 355936, 378182, 401336, 432208, 578396, 661024, 702338, 756364, 802672, 864416, 1156792, 1404676, 1512728, 1605344, 2313584, 2458183, 2809352, 3025456, 4627168, 4916366, 5618704, 6050912, 9832732, 11237408, 19665464, 39330928, 78661856]

約数ペア:

[(1, 78661856), (2, 39330928), (4, 19665464), (7, 11237408), (8, 9832732), (13, 6050912), (14, 5618704), (16, 4916366), (17, 4627168), (26, 3025456), (28, 2809352), (32, 2458183), (34, 2313584), (49, 1605344), (52, 1512728), (56, 1404676), (68, 1156792), (91, 864416), (98, 802672), (104, 756364), (112, 702338), (119, 661024), (136, 578396), (182, 432208), (196, 401336), (208, 378182), (221, 355936), (224, 351169), (227, 346528), (238, 330512), (272, 289198), (364, 216104), (392, 200668), (416, 189091), (442, 177968), (454, 173264), (476, 165256), (544, 144599), (637, 123488), (728, 108052), (784, 100334), (833, 94432), (884, 88984), (908, 86632), (952, 82628), (1274, 61744), (1456, 54026), (1547, 50848), (1568, 50167), (1589, 49504), (1666, 47216), (1768, 44492), (1816, 43316), (1904, 41314), (2548, 30872), (2912, 27013), (2951, 26656), (3094, 25424), (3178, 24752), (3332, 23608), (3536, 22246), (3632, 21658), (3808, 20657), (3859, 20384), (5096, 15436), (5902, 13328), (6188, 12712), (6356, 12376), (6664, 11804), (7072, 11123), (7264, 10829), (7718, 10192)]