28100806840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2819}}^1\times {\mathrm{8039}}^1$

素因数の和:10900

約数の個数: 64

約数和(自身を含む): 65297664000

約数和(自身を除く): 37196857160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 2819, 5638, 8039, 11276, 14095, 16078, 22552, 28190, 32156, 40195, 56380, 64312, 80390, 87389, 112760, 160780, 174778, 249209, 321560, 349556, 436945, 498418, 699112, 873890, 996836, 1246045, 1747780, 1993672, 2492090, 3495560, 4984180, 9968360, 22661941, 45323882, 90647764, 113309705, 181295528, 226619410, 453238820, 702520171, 906477640, 1405040342, 2810080684, 3512600855, 5620161368, 7025201710, 14050403420, 28100806840]

約数ペア:

[(1, 28100806840), (2, 14050403420), (4, 7025201710), (5, 5620161368), (8, 3512600855), (10, 2810080684), (20, 1405040342), (31, 906477640), (40, 702520171), (62, 453238820), (124, 226619410), (155, 181295528), (248, 113309705), (310, 90647764), (620, 45323882), (1240, 22661941), (2819, 9968360), (5638, 4984180), (8039, 3495560), (11276, 2492090), (14095, 1993672), (16078, 1747780), (22552, 1246045), (28190, 996836), (32156, 873890), (40195, 699112), (56380, 498418), (64312, 436945), (80390, 349556), (87389, 321560), (112760, 249209), (160780, 174778)]