16008220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{239}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 35925120

約数和(自身を除く): 19916900

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 197, 239, 340, 394, 478, 788, 956, 985, 1195, 1970, 2390, 3349, 3940, 4063, 4780, 6698, 8126, 13396, 16252, 16745, 20315, 33490, 40630, 47083, 66980, 81260, 94166, 188332, 235415, 470830, 800411, 941660, 1600822, 3201644, 4002055, 8004110, 16008220]

約数ペア:

[(1, 16008220), (2, 8004110), (4, 4002055), (5, 3201644), (10, 1600822), (17, 941660), (20, 800411), (34, 470830), (68, 235415), (85, 188332), (170, 94166), (197, 81260), (239, 66980), (340, 47083), (394, 40630), (478, 33490), (788, 20315), (956, 16745), (985, 16252), (1195, 13396), (1970, 8126), (2390, 6698), (3349, 4780), (3940, 4063)]