425396660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{991}}^1$

素因数の和:1153

約数の個数: 72

約数和(自身を含む): 975937536

約数和(自身を除く): 550540876

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 169, 254, 260, 338, 508, 635, 676, 845, 991, 1270, 1651, 1690, 1982, 2540, 3302, 3380, 3964, 4955, 6604, 8255, 9910, 12883, 16510, 19820, 21463, 25766, 33020, 42926, 51532, 64415, 85852, 107315, 125857, 128830, 167479, 214630, 251714, 257660, 334958, 429260, 503428, 629285, 669916, 837395, 1258570, 1636141, 1674790, 2517140, 3272282, 3349580, 6544564, 8180705, 16361410, 21269833, 32722820, 42539666, 85079332, 106349165, 212698330, 425396660]

約数ペア:

[(1, 425396660), (2, 212698330), (4, 106349165), (5, 85079332), (10, 42539666), (13, 32722820), (20, 21269833), (26, 16361410), (52, 8180705), (65, 6544564), (127, 3349580), (130, 3272282), (169, 2517140), (254, 1674790), (260, 1636141), (338, 1258570), (508, 837395), (635, 669916), (676, 629285), (845, 503428), (991, 429260), (1270, 334958), (1651, 257660), (1690, 251714), (1982, 214630), (2540, 167479), (3302, 128830), (3380, 125857), (3964, 107315), (4955, 85852), (6604, 64415), (8255, 51532), (9910, 42926), (12883, 33020), (16510, 25766), (19820, 21463)]