1681980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{97}}^1$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 5054448

約数和(自身を除く): 3372468

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 97, 102, 170, 194, 204, 255, 289, 291, 340, 388, 485, 510, 578, 582, 867, 970, 1020, 1156, 1164, 1445, 1455, 1649, 1734, 1940, 2890, 2910, 3298, 3468, 4335, 4947, 5780, 5820, 6596, 8245, 8670, 9894, 16490, 17340, 19788, 24735, 28033, 32980, 49470, 56066, 84099, 98940, 112132, 140165, 168198, 280330, 336396, 420495, 560660, 840990, 1681980]

約数ペア:

[(1, 1681980), (2, 840990), (3, 560660), (4, 420495), (5, 336396), (6, 280330), (10, 168198), (12, 140165), (15, 112132), (17, 98940), (20, 84099), (30, 56066), (34, 49470), (51, 32980), (60, 28033), (68, 24735), (85, 19788), (97, 17340), (102, 16490), (170, 9894), (194, 8670), (204, 8245), (255, 6596), (289, 5820), (291, 5780), (340, 4947), (388, 4335), (485, 3468), (510, 3298), (578, 2910), (582, 2890), (867, 1940), (970, 1734), (1020, 1649), (1156, 1455), (1164, 1445)]