78277108

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1053

約数の個数: 72

約数和(自身を含む): 177321984

約数和(自身を除く): 99044876

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 49, 52, 62, 91, 98, 124, 182, 196, 217, 364, 403, 434, 637, 806, 868, 991, 1274, 1519, 1612, 1982, 2548, 2821, 3038, 3964, 5642, 6076, 6937, 11284, 12883, 13874, 19747, 25766, 27748, 30721, 39494, 48559, 51532, 61442, 78988, 90181, 97118, 122884, 180362, 194236, 215047, 360724, 399373, 430094, 631267, 798746, 860188, 1262534, 1505329, 1597492, 2525068, 2795611, 3010658, 5591222, 6021316, 11182444, 19569277, 39138554, 78277108]

約数ペア:

[(1, 78277108), (2, 39138554), (4, 19569277), (7, 11182444), (13, 6021316), (14, 5591222), (26, 3010658), (28, 2795611), (31, 2525068), (49, 1597492), (52, 1505329), (62, 1262534), (91, 860188), (98, 798746), (124, 631267), (182, 430094), (196, 399373), (217, 360724), (364, 215047), (403, 194236), (434, 180362), (637, 122884), (806, 97118), (868, 90181), (991, 78988), (1274, 61442), (1519, 51532), (1612, 48559), (1982, 39494), (2548, 30721), (2821, 27748), (3038, 25766), (3964, 19747), (5642, 13874), (6076, 12883), (6937, 11284)]