1294358440

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{389867}}^1$

素因数の和:389961

約数の個数: 32

約数和(自身を含む): 2947402080

約数和(自身を除く): 1653043640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 389867, 779734, 1559468, 1949335, 3118936, 3898670, 7797340, 15594680, 32358961, 64717922, 129435844, 161794805, 258871688, 323589610, 647179220, 1294358440]

約数ペア:

[(1, 1294358440), (2, 647179220), (4, 323589610), (5, 258871688), (8, 161794805), (10, 129435844), (20, 64717922), (40, 32358961), (83, 15594680), (166, 7797340), (332, 3898670), (415, 3118936), (664, 1949335), (830, 1559468), (1660, 779734), (3320, 389867)]