890930820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{2143}}^1$

素因数の和:2222

約数の個数: 144

約数和(自身を含む): 2768435712

約数和(自身を除く): 1877504892

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 41, 52, 60, 65, 78, 82, 123, 130, 156, 164, 169, 195, 205, 246, 260, 338, 390, 410, 492, 507, 533, 615, 676, 780, 820, 845, 1014, 1066, 1230, 1599, 1690, 2028, 2132, 2143, 2460, 2535, 2665, 3198, 3380, 4286, 5070, 5330, 6396, 6429, 6929, 7995, 8572, 10140, 10660, 10715, 12858, 13858, 15990, 20787, 21430, 25716, 27716, 27859, 31980, 32145, 34645, 41574, 42860, 55718, 64290, 69290, 83148, 83577, 87863, 103935, 111436, 128580, 138580, 139295, 167154, 175726, 207870, 263589, 278590, 334308, 351452, 362167, 415740, 417885, 439315, 527178, 557180, 724334, 835770, 878630, 1054356, 1086501, 1142219, 1317945, 1448668, 1671540, 1757260, 1810835, 2173002, 2284438, 2635890, 3426657, 3621670, 4346004, 4568876, 5271780, 5432505, 5711095, 6853314, 7243340, 10865010, 11422190, 13706628, 14848847, 17133285, 21730020, 22844380, 29697694, 34266570, 44546541, 59395388, 68533140, 74244235, 89093082, 148488470, 178186164, 222732705, 296976940, 445465410, 890930820]

約数ペア:

[(1, 890930820), (2, 445465410), (3, 296976940), (4, 222732705), (5, 178186164), (6, 148488470), (10, 89093082), (12, 74244235), (13, 68533140), (15, 59395388), (20, 44546541), (26, 34266570), (30, 29697694), (39, 22844380), (41, 21730020), (52, 17133285), (60, 14848847), (65, 13706628), (78, 11422190), (82, 10865010), (123, 7243340), (130, 6853314), (156, 5711095), (164, 5432505), (169, 5271780), (195, 4568876), (205, 4346004), (246, 3621670), (260, 3426657), (338, 2635890), (390, 2284438), (410, 2173002), (492, 1810835), (507, 1757260), (533, 1671540), (615, 1448668), (676, 1317945), (780, 1142219), (820, 1086501), (845, 1054356), (1014, 878630), (1066, 835770), (1230, 724334), (1599, 557180), (1690, 527178), (2028, 439315), (2132, 417885), (2143, 415740), (2460, 362167), (2535, 351452), (2665, 334308), (3198, 278590), (3380, 263589), (4286, 207870), (5070, 175726), (5330, 167154), (6396, 139295), (6429, 138580), (6929, 128580), (7995, 111436), (8572, 103935), (10140, 87863), (10660, 83577), (10715, 83148), (12858, 69290), (13858, 64290), (15990, 55718), (20787, 42860), (21430, 41574), (25716, 34645), (27716, 32145), (27859, 31980)]