650897080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{4007}}^1$

素因数の和:4180

約数の個数: 64

約数和(自身を含む): 1523681280

約数和(自身を除く): 872784200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 131, 155, 248, 262, 310, 524, 620, 655, 1048, 1240, 1310, 2620, 4007, 4061, 5240, 8014, 8122, 16028, 16244, 20035, 20305, 32056, 32488, 40070, 40610, 80140, 81220, 124217, 160280, 162440, 248434, 496868, 524917, 621085, 993736, 1049834, 1242170, 2099668, 2484340, 2624585, 4199336, 4968680, 5249170, 10498340, 16272427, 20996680, 32544854, 65089708, 81362135, 130179416, 162724270, 325448540, 650897080]

約数ペア:

[(1, 650897080), (2, 325448540), (4, 162724270), (5, 130179416), (8, 81362135), (10, 65089708), (20, 32544854), (31, 20996680), (40, 16272427), (62, 10498340), (124, 5249170), (131, 4968680), (155, 4199336), (248, 2624585), (262, 2484340), (310, 2099668), (524, 1242170), (620, 1049834), (655, 993736), (1048, 621085), (1240, 524917), (1310, 496868), (2620, 248434), (4007, 162440), (4061, 160280), (5240, 124217), (8014, 81220), (8122, 80140), (16028, 40610), (16244, 40070), (20035, 32488), (20305, 32056)]