7977780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:126

約数の個数: 144

約数和(自身を含む): 26417664

約数和(自身を除く): 18439884

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 41, 45, 46, 47, 60, 69, 82, 90, 92, 94, 115, 123, 138, 141, 164, 180, 188, 205, 207, 230, 235, 246, 276, 282, 345, 369, 410, 414, 423, 460, 470, 492, 564, 615, 690, 705, 738, 820, 828, 846, 940, 943, 1035, 1081, 1230, 1380, 1410, 1476, 1692, 1845, 1886, 1927, 2070, 2115, 2162, 2460, 2820, 2829, 3243, 3690, 3772, 3854, 4140, 4230, 4324, 4715, 5405, 5658, 5781, 6486, 7380, 7708, 8460, 8487, 9430, 9635, 9729, 10810, 11316, 11562, 12972, 14145, 16215, 16974, 17343, 18860, 19270, 19458, 21620, 23124, 28290, 28905, 32430, 33948, 34686, 38540, 38916, 42435, 44321, 48645, 56580, 57810, 64860, 69372, 84870, 86715, 88642, 97290, 115620, 132963, 169740, 173430, 177284, 194580, 221605, 265926, 346860, 398889, 443210, 531852, 664815, 797778, 886420, 1329630, 1595556, 1994445, 2659260, 3988890, 7977780]

約数ペア:

[(1, 7977780), (2, 3988890), (3, 2659260), (4, 1994445), (5, 1595556), (6, 1329630), (9, 886420), (10, 797778), (12, 664815), (15, 531852), (18, 443210), (20, 398889), (23, 346860), (30, 265926), (36, 221605), (41, 194580), (45, 177284), (46, 173430), (47, 169740), (60, 132963), (69, 115620), (82, 97290), (90, 88642), (92, 86715), (94, 84870), (115, 69372), (123, 64860), (138, 57810), (141, 56580), (164, 48645), (180, 44321), (188, 42435), (205, 38916), (207, 38540), (230, 34686), (235, 33948), (246, 32430), (276, 28905), (282, 28290), (345, 23124), (369, 21620), (410, 19458), (414, 19270), (423, 18860), (460, 17343), (470, 16974), (492, 16215), (564, 14145), (615, 12972), (690, 11562), (705, 11316), (738, 10810), (820, 9729), (828, 9635), (846, 9430), (940, 8487), (943, 8460), (1035, 7708), (1081, 7380), (1230, 6486), (1380, 5781), (1410, 5658), (1476, 5405), (1692, 4715), (1845, 4324), (1886, 4230), (1927, 4140), (2070, 3854), (2115, 3772), (2162, 3690), (2460, 3243), (2820, 2829)]