255438260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{887}}^1$

素因数の和:942

約数の個数: 144

約数和(自身を含む): 714292992

約数和(自身を除く): 458854732

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 20, 22, 28, 34, 35, 44, 55, 68, 70, 77, 85, 110, 119, 121, 140, 154, 170, 187, 220, 238, 242, 308, 340, 374, 385, 476, 484, 595, 605, 748, 770, 847, 887, 935, 1190, 1210, 1309, 1540, 1694, 1774, 1870, 2057, 2380, 2420, 2618, 3388, 3548, 3740, 4114, 4235, 4435, 5236, 6209, 6545, 8228, 8470, 8870, 9757, 10285, 12418, 13090, 14399, 15079, 16940, 17740, 19514, 20570, 24836, 26180, 28798, 30158, 31045, 39028, 41140, 48785, 57596, 60316, 62090, 68299, 71995, 75395, 97570, 105553, 107327, 124180, 136598, 143990, 150790, 165869, 195140, 211106, 214654, 273196, 287980, 301580, 331738, 341495, 422212, 429308, 527765, 536635, 663476, 682990, 751289, 829345, 1055530, 1073270, 1161083, 1365980, 1502578, 1658690, 1824559, 2111060, 2146540, 2322166, 3005156, 3317380, 3649118, 3756445, 4644332, 5805415, 7298236, 7512890, 9122795, 11610830, 12771913, 15025780, 18245590, 23221660, 25543826, 36491180, 51087652, 63859565, 127719130, 255438260]

約数ペア:

[(1, 255438260), (2, 127719130), (4, 63859565), (5, 51087652), (7, 36491180), (10, 25543826), (11, 23221660), (14, 18245590), (17, 15025780), (20, 12771913), (22, 11610830), (28, 9122795), (34, 7512890), (35, 7298236), (44, 5805415), (55, 4644332), (68, 3756445), (70, 3649118), (77, 3317380), (85, 3005156), (110, 2322166), (119, 2146540), (121, 2111060), (140, 1824559), (154, 1658690), (170, 1502578), (187, 1365980), (220, 1161083), (238, 1073270), (242, 1055530), (308, 829345), (340, 751289), (374, 682990), (385, 663476), (476, 536635), (484, 527765), (595, 429308), (605, 422212), (748, 341495), (770, 331738), (847, 301580), (887, 287980), (935, 273196), (1190, 214654), (1210, 211106), (1309, 195140), (1540, 165869), (1694, 150790), (1774, 143990), (1870, 136598), (2057, 124180), (2380, 107327), (2420, 105553), (2618, 97570), (3388, 75395), (3548, 71995), (3740, 68299), (4114, 62090), (4235, 60316), (4435, 57596), (5236, 48785), (6209, 41140), (6545, 39028), (8228, 31045), (8470, 30158), (8870, 28798), (9757, 26180), (10285, 24836), (12418, 20570), (13090, 19514), (14399, 17740), (15079, 16940)]