2784447280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1122761}}^1$

素因数の和:1122805

約数の個数: 40

約数和(自身を含む): 6682679424

約数和(自身を除く): 3898232144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 1122761, 2245522, 4491044, 5613805, 8982088, 11227610, 17964176, 22455220, 34805591, 44910440, 69611182, 89820880, 139222364, 174027955, 278444728, 348055910, 556889456, 696111820, 1392223640, 2784447280]

約数ペア:

[(1, 2784447280), (2, 1392223640), (4, 696111820), (5, 556889456), (8, 348055910), (10, 278444728), (16, 174027955), (20, 139222364), (31, 89820880), (40, 69611182), (62, 44910440), (80, 34805591), (124, 22455220), (155, 17964176), (248, 11227610), (310, 8982088), (496, 5613805), (620, 4491044), (1240, 2245522), (2480, 1122761)]