31839860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{811}}^1$

素因数の和:984

約数の個数: 48

約数和(自身を含む): 72573312

約数和(自身を除く): 40733452

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 151, 260, 302, 604, 755, 811, 1510, 1622, 1963, 3020, 3244, 3926, 4055, 7852, 8110, 9815, 10543, 16220, 19630, 21086, 39260, 42172, 52715, 105430, 122461, 210860, 244922, 489844, 612305, 1224610, 1591993, 2449220, 3183986, 6367972, 7959965, 15919930, 31839860]

約数ペア:

[(1, 31839860), (2, 15919930), (4, 7959965), (5, 6367972), (10, 3183986), (13, 2449220), (20, 1591993), (26, 1224610), (52, 612305), (65, 489844), (130, 244922), (151, 210860), (260, 122461), (302, 105430), (604, 52715), (755, 42172), (811, 39260), (1510, 21086), (1622, 19630), (1963, 16220), (3020, 10543), (3244, 9815), (3926, 8110), (4055, 7852)]