28977156

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{20639}}^1$

素因数の和:20665

約数の個数: 48

約数和(自身を含む): 80908800

約数和(自身を除く): 51931644

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 20639, 41278, 61917, 82556, 123834, 185751, 247668, 268307, 371502, 536614, 557253, 743004, 804921, 1073228, 1114506, 1609842, 2229012, 2414763, 3219684, 4829526, 7244289, 9659052, 14488578, 28977156]

約数ペア:

[(1, 28977156), (2, 14488578), (3, 9659052), (4, 7244289), (6, 4829526), (9, 3219684), (12, 2414763), (13, 2229012), (18, 1609842), (26, 1114506), (27, 1073228), (36, 804921), (39, 743004), (52, 557253), (54, 536614), (78, 371502), (108, 268307), (117, 247668), (156, 185751), (234, 123834), (351, 82556), (468, 61917), (702, 41278), (1404, 20639)]