215683460

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1\times {\mathrm{461}}^1$

素因数の和:776

約数の個数: 48

約数和(自身を含む): 459874800

約数和(自身を除く): 244191340

約数列:

[1, 2, 4, 5, 10, 20, 149, 157, 298, 314, 461, 596, 628, 745, 785, 922, 1490, 1570, 1844, 2305, 2980, 3140, 4610, 9220, 23393, 46786, 68689, 72377, 93572, 116965, 137378, 144754, 233930, 274756, 289508, 343445, 361885, 467860, 686890, 723770, 1373780, 1447540, 10784173, 21568346, 43136692, 53920865, 107841730, 215683460]

約数ペア:

[(1, 215683460), (2, 107841730), (4, 53920865), (5, 43136692), (10, 21568346), (20, 10784173), (149, 1447540), (157, 1373780), (298, 723770), (314, 686890), (461, 467860), (596, 361885), (628, 343445), (745, 289508), (785, 274756), (922, 233930), (1490, 144754), (1570, 137378), (1844, 116965), (2305, 93572), (2980, 72377), (3140, 68689), (4610, 46786), (9220, 23393)]