2208980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 5034960

約数和(自身を除く): 2825980

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 73, 85, 89, 146, 170, 178, 292, 340, 356, 365, 445, 730, 890, 1241, 1460, 1513, 1780, 2482, 3026, 4964, 6052, 6205, 6497, 7565, 12410, 12994, 15130, 24820, 25988, 30260, 32485, 64970, 110449, 129940, 220898, 441796, 552245, 1104490, 2208980]

約数ペア:

[(1, 2208980), (2, 1104490), (4, 552245), (5, 441796), (10, 220898), (17, 129940), (20, 110449), (34, 64970), (68, 32485), (73, 30260), (85, 25988), (89, 24820), (146, 15130), (170, 12994), (178, 12410), (292, 7565), (340, 6497), (356, 6205), (365, 6052), (445, 4964), (730, 3026), (890, 2482), (1241, 1780), (1460, 1513)]