1648659980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{241739}}^1$

素因数の和:241790

約数の個数: 48

約数和(自身を含む): 3898782720

約数和(自身を除く): 2250122740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 241739, 483478, 966956, 1208695, 2417390, 2659129, 4834780, 5318258, 7493909, 10636516, 13295645, 14987818, 26591290, 29975636, 37469545, 53182580, 74939090, 82432999, 149878180, 164865998, 329731996, 412164995, 824329990, 1648659980]

約数ペア:

[(1, 1648659980), (2, 824329990), (4, 412164995), (5, 329731996), (10, 164865998), (11, 149878180), (20, 82432999), (22, 74939090), (31, 53182580), (44, 37469545), (55, 29975636), (62, 26591290), (110, 14987818), (124, 13295645), (155, 10636516), (220, 7493909), (310, 5318258), (341, 4834780), (620, 2659129), (682, 2417390), (1364, 1208695), (1705, 966956), (3410, 483478), (6820, 241739)]