78422870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:725

約数の個数: 64

約数和(自身を含む): 161243136

約数和(自身を除く): 82820266

約数列:

[1, 2, 5, 10, 17, 23, 31, 34, 46, 62, 85, 115, 155, 170, 230, 310, 391, 527, 647, 713, 782, 1054, 1294, 1426, 1955, 2635, 3235, 3565, 3910, 5270, 6470, 7130, 10999, 12121, 14881, 20057, 21998, 24242, 29762, 40114, 54995, 60605, 74405, 100285, 109990, 121210, 148810, 200570, 252977, 340969, 461311, 505954, 681938, 922622, 1264885, 1704845, 2306555, 2529770, 3409690, 4613110, 7842287, 15684574, 39211435, 78422870]

約数ペア:

[(1, 78422870), (2, 39211435), (5, 15684574), (10, 7842287), (17, 4613110), (23, 3409690), (31, 2529770), (34, 2306555), (46, 1704845), (62, 1264885), (85, 922622), (115, 681938), (155, 505954), (170, 461311), (230, 340969), (310, 252977), (391, 200570), (527, 148810), (647, 121210), (713, 109990), (782, 100285), (1054, 74405), (1294, 60605), (1426, 54995), (1955, 40114), (2635, 29762), (3235, 24242), (3565, 21998), (3910, 20057), (5270, 14881), (6470, 12121), (7130, 10999)]