19782390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{491}}^1$

素因数の和:597

約数の個数: 64

約数和(自身を含む): 51010560

約数和(自身を除く): 31228170

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 79, 85, 102, 158, 170, 237, 255, 395, 474, 491, 510, 790, 982, 1185, 1343, 1473, 2370, 2455, 2686, 2946, 4029, 4910, 6715, 7365, 8058, 8347, 13430, 14730, 16694, 20145, 25041, 38789, 40290, 41735, 50082, 77578, 83470, 116367, 125205, 193945, 232734, 250410, 387890, 581835, 659413, 1163670, 1318826, 1978239, 3297065, 3956478, 6594130, 9891195, 19782390]

約数ペア:

[(1, 19782390), (2, 9891195), (3, 6594130), (5, 3956478), (6, 3297065), (10, 1978239), (15, 1318826), (17, 1163670), (30, 659413), (34, 581835), (51, 387890), (79, 250410), (85, 232734), (102, 193945), (158, 125205), (170, 116367), (237, 83470), (255, 77578), (395, 50082), (474, 41735), (491, 40290), (510, 38789), (790, 25041), (982, 20145), (1185, 16694), (1343, 14730), (1473, 13430), (2370, 8347), (2455, 8058), (2686, 7365), (2946, 6715), (4029, 4910)]