256018140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{29027}}^1$

素因数の和:29056

約数の個数: 108

約数和(自身を含む): 903409416

約数和(自身を除く): 647391276

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 29027, 58054, 87081, 116108, 145135, 174162, 203189, 261243, 290270, 348324, 406378, 435405, 522486, 580540, 609567, 812756, 870810, 1015945, 1044972, 1219134, 1306215, 1422323, 1741620, 1828701, 2031890, 2438268, 2612430, 2844646, 3047835, 3657402, 4063780, 4266969, 5224860, 5689292, 6095670, 7111615, 7314804, 8533938, 9143505, 12191340, 12800907, 14223230, 17067876, 18287010, 21334845, 25601814, 28446460, 36574020, 42669690, 51203628, 64004535, 85339380, 128009070, 256018140]

約数ペア:

[(1, 256018140), (2, 128009070), (3, 85339380), (4, 64004535), (5, 51203628), (6, 42669690), (7, 36574020), (9, 28446460), (10, 25601814), (12, 21334845), (14, 18287010), (15, 17067876), (18, 14223230), (20, 12800907), (21, 12191340), (28, 9143505), (30, 8533938), (35, 7314804), (36, 7111615), (42, 6095670), (45, 5689292), (49, 5224860), (60, 4266969), (63, 4063780), (70, 3657402), (84, 3047835), (90, 2844646), (98, 2612430), (105, 2438268), (126, 2031890), (140, 1828701), (147, 1741620), (180, 1422323), (196, 1306215), (210, 1219134), (245, 1044972), (252, 1015945), (294, 870810), (315, 812756), (420, 609567), (441, 580540), (490, 522486), (588, 435405), (630, 406378), (735, 348324), (882, 290270), (980, 261243), (1260, 203189), (1470, 174162), (1764, 145135), (2205, 116108), (2940, 87081), (4410, 58054), (8820, 29027)]