19565460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1489}}^1$

素因数の和:1577

約数の個数: 72

約数和(自身を含む): 60201960

約数和(自身を除く): 40636500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 146, 180, 219, 292, 365, 438, 657, 730, 876, 1095, 1314, 1460, 1489, 2190, 2628, 2978, 3285, 4380, 4467, 5956, 6570, 7445, 8934, 13140, 13401, 14890, 17868, 22335, 26802, 29780, 44670, 53604, 67005, 89340, 108697, 134010, 217394, 268020, 326091, 434788, 543485, 652182, 978273, 1086970, 1304364, 1630455, 1956546, 2173940, 3260910, 3913092, 4891365, 6521820, 9782730, 19565460]

約数ペア:

[(1, 19565460), (2, 9782730), (3, 6521820), (4, 4891365), (5, 3913092), (6, 3260910), (9, 2173940), (10, 1956546), (12, 1630455), (15, 1304364), (18, 1086970), (20, 978273), (30, 652182), (36, 543485), (45, 434788), (60, 326091), (73, 268020), (90, 217394), (146, 134010), (180, 108697), (219, 89340), (292, 67005), (365, 53604), (438, 44670), (657, 29780), (730, 26802), (876, 22335), (1095, 17868), (1314, 14890), (1460, 13401), (1489, 13140), (2190, 8934), (2628, 7445), (2978, 6570), (3285, 5956), (4380, 4467)]