981567320

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{659}}^1\times {\mathrm{1619}}^1$

素因数の和:2312

約数の個数: 64

約数和(自身を含む): 2309472000

約数和(自身を除く): 1327904680

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 659, 920, 1318, 1619, 2636, 3238, 3295, 5272, 6476, 6590, 8095, 12952, 13180, 15157, 16190, 26360, 30314, 32380, 37237, 60628, 64760, 74474, 75785, 121256, 148948, 151570, 186185, 297896, 303140, 372370, 606280, 744740, 1066921, 1489480, 2133842, 4267684, 5334605, 8535368, 10669210, 21338420, 24539183, 42676840, 49078366, 98156732, 122695915, 196313464, 245391830, 490783660, 981567320]

約数ペア:

[(1, 981567320), (2, 490783660), (4, 245391830), (5, 196313464), (8, 122695915), (10, 98156732), (20, 49078366), (23, 42676840), (40, 24539183), (46, 21338420), (92, 10669210), (115, 8535368), (184, 5334605), (230, 4267684), (460, 2133842), (659, 1489480), (920, 1066921), (1318, 744740), (1619, 606280), (2636, 372370), (3238, 303140), (3295, 297896), (5272, 186185), (6476, 151570), (6590, 148948), (8095, 121256), (12952, 75785), (13180, 74474), (15157, 64760), (16190, 60628), (26360, 37237), (30314, 32380)]