20667270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{269}}^1$

素因数の和:489

約数の個数: 64

約数和(自身を含む): 53887680

約数和(自身を除く): 33220410

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 197, 269, 390, 394, 538, 591, 807, 985, 1182, 1345, 1614, 1970, 2561, 2690, 2955, 3497, 4035, 5122, 5910, 6994, 7683, 8070, 10491, 12805, 15366, 17485, 20982, 25610, 34970, 38415, 52455, 52993, 76830, 104910, 105986, 158979, 264965, 317958, 529930, 688909, 794895, 1377818, 1589790, 2066727, 3444545, 4133454, 6889090, 10333635, 20667270]

約数ペア:

[(1, 20667270), (2, 10333635), (3, 6889090), (5, 4133454), (6, 3444545), (10, 2066727), (13, 1589790), (15, 1377818), (26, 794895), (30, 688909), (39, 529930), (65, 317958), (78, 264965), (130, 158979), (195, 105986), (197, 104910), (269, 76830), (390, 52993), (394, 52455), (538, 38415), (591, 34970), (807, 25610), (985, 20982), (1182, 17485), (1345, 15366), (1614, 12805), (1970, 10491), (2561, 8070), (2690, 7683), (2955, 6994), (3497, 5910), (4035, 5122)]