31949580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{40961}}^1$

素因数の和:40986

約数の個数: 48

約数和(自身を含む): 96342624

約数和(自身を除く): 64393044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 40961, 81922, 122883, 163844, 204805, 245766, 409610, 491532, 532493, 614415, 819220, 1064986, 1228830, 1597479, 2129972, 2457660, 2662465, 3194958, 5324930, 6389916, 7987395, 10649860, 15974790, 31949580]

約数ペア:

[(1, 31949580), (2, 15974790), (3, 10649860), (4, 7987395), (5, 6389916), (6, 5324930), (10, 3194958), (12, 2662465), (13, 2457660), (15, 2129972), (20, 1597479), (26, 1228830), (30, 1064986), (39, 819220), (52, 614415), (60, 532493), (65, 491532), (78, 409610), (130, 245766), (156, 204805), (195, 163844), (260, 122883), (390, 81922), (780, 40961)]