18965050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{179}}^1$

素因数の和:367

約数の個数: 48

約数和(自身を含む): 38435040

約数和(自身を除く): 19469990

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 163, 179, 325, 326, 358, 650, 815, 895, 1630, 1790, 2119, 2327, 4075, 4238, 4475, 4654, 8150, 8950, 10595, 11635, 21190, 23270, 29177, 52975, 58175, 58354, 105950, 116350, 145885, 291770, 379301, 729425, 758602, 1458850, 1896505, 3793010, 9482525, 18965050]

約数ペア:

[(1, 18965050), (2, 9482525), (5, 3793010), (10, 1896505), (13, 1458850), (25, 758602), (26, 729425), (50, 379301), (65, 291770), (130, 145885), (163, 116350), (179, 105950), (325, 58354), (326, 58175), (358, 52975), (650, 29177), (815, 23270), (895, 21190), (1630, 11635), (1790, 10595), (2119, 8950), (2327, 8150), (4075, 4654), (4238, 4475)]