20868510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{733}}^1$

素因数の和:829

約数の個数: 64

約数和(自身を含む): 54750528

約数和(自身を除く): 33882018

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 73, 78, 130, 146, 195, 219, 365, 390, 438, 730, 733, 949, 1095, 1466, 1898, 2190, 2199, 2847, 3665, 4398, 4745, 5694, 7330, 9490, 9529, 10995, 14235, 19058, 21990, 28470, 28587, 47645, 53509, 57174, 95290, 107018, 142935, 160527, 267545, 285870, 321054, 535090, 695617, 802635, 1391234, 1605270, 2086851, 3478085, 4173702, 6956170, 10434255, 20868510]

約数ペア:

[(1, 20868510), (2, 10434255), (3, 6956170), (5, 4173702), (6, 3478085), (10, 2086851), (13, 1605270), (15, 1391234), (26, 802635), (30, 695617), (39, 535090), (65, 321054), (73, 285870), (78, 267545), (130, 160527), (146, 142935), (195, 107018), (219, 95290), (365, 57174), (390, 53509), (438, 47645), (730, 28587), (733, 28470), (949, 21990), (1095, 19058), (1466, 14235), (1898, 10995), (2190, 9529), (2199, 9490), (2847, 7330), (3665, 5694), (4398, 4745)]