77218220

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1\times {\mathrm{257}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 165660768

約数和(自身を除く): 88442548

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 181, 257, 332, 362, 415, 514, 724, 830, 905, 1028, 1285, 1660, 1810, 2570, 3620, 5140, 15023, 21331, 30046, 42662, 46517, 60092, 75115, 85324, 93034, 106655, 150230, 186068, 213310, 232585, 300460, 426620, 465170, 930340, 3860911, 7721822, 15443644, 19304555, 38609110, 77218220]

約数ペア:

[(1, 77218220), (2, 38609110), (4, 19304555), (5, 15443644), (10, 7721822), (20, 3860911), (83, 930340), (166, 465170), (181, 426620), (257, 300460), (332, 232585), (362, 213310), (415, 186068), (514, 150230), (724, 106655), (830, 93034), (905, 85324), (1028, 75115), (1285, 60092), (1660, 46517), (1810, 42662), (2570, 30046), (3620, 21331), (5140, 15023)]