28808920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3319}}^1$

素因数の和:3368

約数の個数: 64

約数和(自身を含む): 76492800

約数和(自身を除く): 47683880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 3319, 4340, 6638, 8680, 13276, 16595, 23233, 26552, 33190, 46466, 66380, 92932, 102889, 116165, 132760, 185864, 205778, 232330, 411556, 464660, 514445, 720223, 823112, 929320, 1028890, 1440446, 2057780, 2880892, 3601115, 4115560, 5761784, 7202230, 14404460, 28808920]

約数ペア:

[(1, 28808920), (2, 14404460), (4, 7202230), (5, 5761784), (7, 4115560), (8, 3601115), (10, 2880892), (14, 2057780), (20, 1440446), (28, 1028890), (31, 929320), (35, 823112), (40, 720223), (56, 514445), (62, 464660), (70, 411556), (124, 232330), (140, 205778), (155, 185864), (217, 132760), (248, 116165), (280, 102889), (310, 92932), (434, 66380), (620, 46466), (868, 33190), (1085, 26552), (1240, 23233), (1736, 16595), (2170, 13276), (3319, 8680), (4340, 6638)]