90091580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{439}}^1$

素因数の和:810

約数の個数: 48

約数和(自身を含む): 196331520

約数和(自身を除く): 106239940

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 331, 439, 620, 662, 878, 1324, 1655, 1756, 2195, 3310, 4390, 6620, 8780, 10261, 13609, 20522, 27218, 41044, 51305, 54436, 68045, 102610, 136090, 145309, 205220, 272180, 290618, 581236, 726545, 1453090, 2906180, 4504579, 9009158, 18018316, 22522895, 45045790, 90091580]

約数ペア:

[(1, 90091580), (2, 45045790), (4, 22522895), (5, 18018316), (10, 9009158), (20, 4504579), (31, 2906180), (62, 1453090), (124, 726545), (155, 581236), (310, 290618), (331, 272180), (439, 205220), (620, 145309), (662, 136090), (878, 102610), (1324, 68045), (1655, 54436), (1756, 51305), (2195, 41044), (3310, 27218), (4390, 20522), (6620, 13609), (8780, 10261)]