1905252180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2442631}}^1$

素因数の和:2442656

約数の個数: 48

約数和(自身を含む): 5745070464

約数和(自身を除く): 3839818284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 2442631, 4885262, 7327893, 9770524, 12213155, 14655786, 24426310, 29311572, 31754203, 36639465, 48852620, 63508406, 73278930, 95262609, 127016812, 146557860, 158771015, 190525218, 317542030, 381050436, 476313045, 635084060, 952626090, 1905252180]

約数ペア:

[(1, 1905252180), (2, 952626090), (3, 635084060), (4, 476313045), (5, 381050436), (6, 317542030), (10, 190525218), (12, 158771015), (13, 146557860), (15, 127016812), (20, 95262609), (26, 73278930), (30, 63508406), (39, 48852620), (52, 36639465), (60, 31754203), (65, 29311572), (78, 24426310), (130, 14655786), (156, 12213155), (195, 9770524), (260, 7327893), (390, 4885262), (780, 2442631)]