28221160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2069}}^1$

素因数の和:2122

約数の個数: 64

約数和(自身を含む): 71539200

約数和(自身を除く): 43318040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2069, 2728, 3410, 4138, 6820, 8276, 10345, 13640, 16552, 20690, 22759, 41380, 45518, 64139, 82760, 91036, 113795, 128278, 182072, 227590, 256556, 320695, 455180, 513112, 641390, 705529, 910360, 1282780, 1411058, 2565560, 2822116, 3527645, 5644232, 7055290, 14110580, 28221160]

約数ペア:

[(1, 28221160), (2, 14110580), (4, 7055290), (5, 5644232), (8, 3527645), (10, 2822116), (11, 2565560), (20, 1411058), (22, 1282780), (31, 910360), (40, 705529), (44, 641390), (55, 513112), (62, 455180), (88, 320695), (110, 256556), (124, 227590), (155, 182072), (220, 128278), (248, 113795), (310, 91036), (341, 82760), (440, 64139), (620, 45518), (682, 41380), (1240, 22759), (1364, 20690), (1705, 16552), (2069, 13640), (2728, 10345), (3410, 8276), (4138, 6820)]