1290900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{331}}^1$

素因数の和:361

約数の個数: 72

約数和(自身を含む): 4034464

約数和(自身を除く): 2743564

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 331, 390, 650, 662, 780, 975, 993, 1300, 1324, 1655, 1950, 1986, 3310, 3900, 3972, 4303, 4965, 6620, 8275, 8606, 9930, 12909, 16550, 17212, 19860, 21515, 24825, 25818, 33100, 43030, 49650, 51636, 64545, 86060, 99300, 107575, 129090, 215150, 258180, 322725, 430300, 645450, 1290900]

約数ペア:

[(1, 1290900), (2, 645450), (3, 430300), (4, 322725), (5, 258180), (6, 215150), (10, 129090), (12, 107575), (13, 99300), (15, 86060), (20, 64545), (25, 51636), (26, 49650), (30, 43030), (39, 33100), (50, 25818), (52, 24825), (60, 21515), (65, 19860), (75, 17212), (78, 16550), (100, 12909), (130, 9930), (150, 8606), (156, 8275), (195, 6620), (260, 4965), (300, 4303), (325, 3972), (331, 3900), (390, 3310), (650, 1986), (662, 1950), (780, 1655), (975, 1324), (993, 1300)]