18204420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23339}}^1$

素因数の和:23364

約数の個数: 48

約数和(自身を含む): 54895680

約数和(自身を除く): 36691260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 23339, 46678, 70017, 93356, 116695, 140034, 233390, 280068, 303407, 350085, 466780, 606814, 700170, 910221, 1213628, 1400340, 1517035, 1820442, 3034070, 3640884, 4551105, 6068140, 9102210, 18204420]

約数ペア:

[(1, 18204420), (2, 9102210), (3, 6068140), (4, 4551105), (5, 3640884), (6, 3034070), (10, 1820442), (12, 1517035), (13, 1400340), (15, 1213628), (20, 910221), (26, 700170), (30, 606814), (39, 466780), (52, 350085), (60, 303407), (65, 280068), (78, 233390), (130, 140034), (156, 116695), (195, 93356), (260, 70017), (390, 46678), (780, 23339)]