2019939090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{21491}}^1$

素因数の和:21755

約数の個数: 64

約数和(自身を含む): 5242672512

約数和(自身を除く): 3222733422

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 241, 390, 482, 723, 1205, 1446, 2410, 3133, 3615, 6266, 7230, 9399, 15665, 18798, 21491, 31330, 42982, 46995, 64473, 93990, 107455, 128946, 214910, 279383, 322365, 558766, 644730, 838149, 1396915, 1676298, 2793830, 4190745, 5179331, 8381490, 10358662, 15537993, 25896655, 31075986, 51793310, 67331303, 77689965, 134662606, 155379930, 201993909, 336656515, 403987818, 673313030, 1009969545, 2019939090]

約数ペア:

[(1, 2019939090), (2, 1009969545), (3, 673313030), (5, 403987818), (6, 336656515), (10, 201993909), (13, 155379930), (15, 134662606), (26, 77689965), (30, 67331303), (39, 51793310), (65, 31075986), (78, 25896655), (130, 15537993), (195, 10358662), (241, 8381490), (390, 5179331), (482, 4190745), (723, 2793830), (1205, 1676298), (1446, 1396915), (2410, 838149), (3133, 644730), (3615, 558766), (6266, 322365), (7230, 279383), (9399, 214910), (15665, 128946), (18798, 107455), (21491, 93990), (31330, 64473), (42982, 46995)]