13079620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 28498176

約数和(自身を除く): 15418556

約数列:

[1, 2, 4, 5, 10, 20, 61, 71, 122, 142, 151, 244, 284, 302, 305, 355, 604, 610, 710, 755, 1220, 1420, 1510, 3020, 4331, 8662, 9211, 10721, 17324, 18422, 21442, 21655, 36844, 42884, 43310, 46055, 53605, 86620, 92110, 107210, 184220, 214420, 653981, 1307962, 2615924, 3269905, 6539810, 13079620]

約数ペア:

[(1, 13079620), (2, 6539810), (4, 3269905), (5, 2615924), (10, 1307962), (20, 653981), (61, 214420), (71, 184220), (122, 107210), (142, 92110), (151, 86620), (244, 53605), (284, 46055), (302, 43310), (305, 42884), (355, 36844), (604, 21655), (610, 21442), (710, 18422), (755, 17324), (1220, 10721), (1420, 9211), (1510, 8662), (3020, 4331)]