438509390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{557}}^1$

素因数の和:1013

約数の個数: 64

約数和(自身を含む): 915530688

約数和(自身を除く): 477021298

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 421, 557, 842, 935, 1114, 1870, 2105, 2785, 4210, 4631, 5570, 6127, 7157, 9262, 9469, 12254, 14314, 18938, 23155, 30635, 35785, 46310, 47345, 61270, 71570, 78727, 94690, 104159, 157454, 208318, 234497, 393635, 468994, 520795, 787270, 1041590, 1172485, 2344970, 2579467, 3986449, 5158934, 7972898, 12897335, 19932245, 25794670, 39864490, 43850939, 87701878, 219254695, 438509390]

約数ペア:

[(1, 438509390), (2, 219254695), (5, 87701878), (10, 43850939), (11, 39864490), (17, 25794670), (22, 19932245), (34, 12897335), (55, 7972898), (85, 5158934), (110, 3986449), (170, 2579467), (187, 2344970), (374, 1172485), (421, 1041590), (557, 787270), (842, 520795), (935, 468994), (1114, 393635), (1870, 234497), (2105, 208318), (2785, 157454), (4210, 104159), (4631, 94690), (5570, 78727), (6127, 71570), (7157, 61270), (9262, 47345), (9469, 46310), (12254, 35785), (14314, 30635), (18938, 23155)]