788440020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{51131}}^1$

素因数の和:51400

約数の個数: 48

約数和(自身を含む): 2216265408

約数和(自身を除く): 1427825388

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 257, 514, 771, 1028, 1285, 1542, 2570, 3084, 3855, 5140, 7710, 15420, 51131, 102262, 153393, 204524, 255655, 306786, 511310, 613572, 766965, 1022620, 1533930, 3067860, 13140667, 26281334, 39422001, 52562668, 65703335, 78844002, 131406670, 157688004, 197110005, 262813340, 394220010, 788440020]

約数ペア:

[(1, 788440020), (2, 394220010), (3, 262813340), (4, 197110005), (5, 157688004), (6, 131406670), (10, 78844002), (12, 65703335), (15, 52562668), (20, 39422001), (30, 26281334), (60, 13140667), (257, 3067860), (514, 1533930), (771, 1022620), (1028, 766965), (1285, 613572), (1542, 511310), (2570, 306786), (3084, 255655), (3855, 204524), (5140, 153393), (7710, 102262), (15420, 51131)]