65884420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:162

約数の個数: 144

約数和(自身を含む): 174666240

約数和(自身を除く): 108781820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 37, 46, 49, 70, 74, 79, 92, 98, 115, 140, 148, 158, 161, 185, 196, 230, 245, 259, 316, 322, 370, 395, 460, 490, 518, 553, 644, 740, 790, 805, 851, 980, 1036, 1106, 1127, 1295, 1580, 1610, 1702, 1813, 1817, 2212, 2254, 2590, 2765, 2923, 3220, 3404, 3626, 3634, 3871, 4255, 4508, 5180, 5530, 5635, 5846, 5957, 7252, 7268, 7742, 8510, 9065, 9085, 11060, 11270, 11692, 11914, 12719, 14615, 15484, 17020, 18130, 18170, 19355, 20461, 22540, 23828, 25438, 29230, 29785, 36260, 36340, 38710, 40922, 41699, 50876, 58460, 59570, 63595, 67229, 77420, 81844, 83398, 89033, 102305, 119140, 127190, 134458, 143227, 166796, 178066, 204610, 208495, 254380, 268916, 286454, 336145, 356132, 409220, 416990, 445165, 470603, 572908, 672290, 716135, 833980, 890330, 941206, 1344580, 1432270, 1780660, 1882412, 2353015, 2864540, 3294221, 4706030, 6588442, 9412060, 13176884, 16471105, 32942210, 65884420]

約数ペア:

[(1, 65884420), (2, 32942210), (4, 16471105), (5, 13176884), (7, 9412060), (10, 6588442), (14, 4706030), (20, 3294221), (23, 2864540), (28, 2353015), (35, 1882412), (37, 1780660), (46, 1432270), (49, 1344580), (70, 941206), (74, 890330), (79, 833980), (92, 716135), (98, 672290), (115, 572908), (140, 470603), (148, 445165), (158, 416990), (161, 409220), (185, 356132), (196, 336145), (230, 286454), (245, 268916), (259, 254380), (316, 208495), (322, 204610), (370, 178066), (395, 166796), (460, 143227), (490, 134458), (518, 127190), (553, 119140), (644, 102305), (740, 89033), (790, 83398), (805, 81844), (851, 77420), (980, 67229), (1036, 63595), (1106, 59570), (1127, 58460), (1295, 50876), (1580, 41699), (1610, 40922), (1702, 38710), (1813, 36340), (1817, 36260), (2212, 29785), (2254, 29230), (2590, 25438), (2765, 23828), (2923, 22540), (3220, 20461), (3404, 19355), (3626, 18170), (3634, 18130), (3871, 17020), (4255, 15484), (4508, 14615), (5180, 12719), (5530, 11914), (5635, 11692), (5846, 11270), (5957, 11060), (7252, 9085), (7268, 9065), (7742, 8510)]