1328760820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{19319}}^1$

素因数の和:19528

約数の個数: 48

約数和(自身を含む): 2953641600

約数和(自身を除く): 1624880780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 181, 190, 362, 380, 724, 905, 1810, 3439, 3620, 6878, 13756, 17195, 19319, 34390, 38638, 68780, 77276, 96595, 193190, 367061, 386380, 734122, 1468244, 1835305, 3496739, 3670610, 6993478, 7341220, 13986956, 17483695, 34967390, 66438041, 69934780, 132876082, 265752164, 332190205, 664380410, 1328760820]

約数ペア:

[(1, 1328760820), (2, 664380410), (4, 332190205), (5, 265752164), (10, 132876082), (19, 69934780), (20, 66438041), (38, 34967390), (76, 17483695), (95, 13986956), (181, 7341220), (190, 6993478), (362, 3670610), (380, 3496739), (724, 1835305), (905, 1468244), (1810, 734122), (3439, 386380), (3620, 367061), (6878, 193190), (13756, 96595), (17195, 77276), (19319, 68780), (34390, 38638)]