898983668

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1\times {\mathrm{991}}^1$

素因数の和:1448

約数の個数: 48

約数和(自身を含む): 1754887680

約数和(自身を除く): 855904012

約数列:

[1, 2, 4, 11, 22, 44, 53, 106, 212, 389, 583, 778, 991, 1166, 1556, 1982, 2332, 3964, 4279, 8558, 10901, 17116, 20617, 21802, 41234, 43604, 52523, 82468, 105046, 210092, 226787, 385499, 453574, 577753, 770998, 907148, 1155506, 1541996, 2311012, 4240489, 8480978, 16961956, 20431447, 40862894, 81725788, 224745917, 449491834, 898983668]

約数ペア:

[(1, 898983668), (2, 449491834), (4, 224745917), (11, 81725788), (22, 40862894), (44, 20431447), (53, 16961956), (106, 8480978), (212, 4240489), (389, 2311012), (583, 1541996), (778, 1155506), (991, 907148), (1166, 770998), (1556, 577753), (1982, 453574), (2332, 385499), (3964, 226787), (4279, 210092), (8558, 105046), (10901, 82468), (17116, 52523), (20617, 43604), (21802, 41234)]