20132576560

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1\times {\mathrm{18049}}^1$

素因数の和:18326

約数の個数: 80

約数和(自身を含む): 47700518400

約数和(自身を除く): 27567941840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 191, 292, 365, 382, 584, 730, 764, 955, 1168, 1460, 1528, 1910, 2920, 3056, 3820, 5840, 7640, 13943, 15280, 18049, 27886, 36098, 55772, 69715, 72196, 90245, 111544, 139430, 144392, 180490, 223088, 278860, 288784, 360980, 557720, 721960, 1115440, 1317577, 1443920, 2635154, 3447359, 5270308, 6587885, 6894718, 10540616, 13175770, 13789436, 17236795, 21081232, 26351540, 27578872, 34473590, 52703080, 55157744, 68947180, 105406160, 137894360, 251657207, 275788720, 503314414, 1006628828, 1258286035, 2013257656, 2516572070, 4026515312, 5033144140, 10066288280, 20132576560]

約数ペア:

[(1, 20132576560), (2, 10066288280), (4, 5033144140), (5, 4026515312), (8, 2516572070), (10, 2013257656), (16, 1258286035), (20, 1006628828), (40, 503314414), (73, 275788720), (80, 251657207), (146, 137894360), (191, 105406160), (292, 68947180), (365, 55157744), (382, 52703080), (584, 34473590), (730, 27578872), (764, 26351540), (955, 21081232), (1168, 17236795), (1460, 13789436), (1528, 13175770), (1910, 10540616), (2920, 6894718), (3056, 6587885), (3820, 5270308), (5840, 3447359), (7640, 2635154), (13943, 1443920), (15280, 1317577), (18049, 1115440), (27886, 721960), (36098, 557720), (55772, 360980), (69715, 288784), (72196, 278860), (90245, 223088), (111544, 180490), (139430, 144392)]