78082020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:147

約数の個数: 216

約数和(自身を含む): 268195200

約数和(自身を除く): 190113180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 30, 34, 36, 38, 45, 51, 57, 60, 68, 76, 79, 85, 90, 95, 102, 114, 153, 158, 170, 171, 180, 190, 204, 228, 237, 255, 285, 289, 306, 316, 323, 340, 342, 380, 395, 474, 510, 570, 578, 612, 646, 684, 711, 765, 790, 855, 867, 948, 969, 1020, 1140, 1156, 1185, 1292, 1343, 1422, 1445, 1501, 1530, 1580, 1615, 1710, 1734, 1938, 2370, 2601, 2686, 2844, 2890, 2907, 3002, 3060, 3230, 3420, 3468, 3555, 3876, 4029, 4335, 4503, 4740, 4845, 5202, 5372, 5491, 5780, 5814, 6004, 6460, 6715, 7110, 7505, 8058, 8670, 9006, 9690, 10404, 10982, 11628, 12087, 13005, 13430, 13509, 14220, 14535, 15010, 16116, 16473, 17340, 18012, 19380, 20145, 21964, 22515, 22831, 24174, 25517, 26010, 26860, 27018, 27455, 29070, 30020, 32946, 40290, 45030, 45662, 48348, 49419, 51034, 52020, 54036, 54910, 58140, 60435, 65892, 67545, 68493, 76551, 80580, 82365, 90060, 91324, 98838, 102068, 109820, 114155, 120870, 127585, 135090, 136986, 153102, 164730, 197676, 205479, 228310, 229653, 241740, 247095, 255170, 270180, 273972, 306204, 329460, 342465, 382755, 410958, 433789, 456620, 459306, 494190, 510340, 684930, 765510, 821916, 867578, 918612, 988380, 1027395, 1148265, 1301367, 1369860, 1531020, 1735156, 2054790, 2168945, 2296530, 2602734, 3904101, 4109580, 4337890, 4593060, 5205468, 6506835, 7808202, 8675780, 13013670, 15616404, 19520505, 26027340, 39041010, 78082020]

約数ペア:

[(1, 78082020), (2, 39041010), (3, 26027340), (4, 19520505), (5, 15616404), (6, 13013670), (9, 8675780), (10, 7808202), (12, 6506835), (15, 5205468), (17, 4593060), (18, 4337890), (19, 4109580), (20, 3904101), (30, 2602734), (34, 2296530), (36, 2168945), (38, 2054790), (45, 1735156), (51, 1531020), (57, 1369860), (60, 1301367), (68, 1148265), (76, 1027395), (79, 988380), (85, 918612), (90, 867578), (95, 821916), (102, 765510), (114, 684930), (153, 510340), (158, 494190), (170, 459306), (171, 456620), (180, 433789), (190, 410958), (204, 382755), (228, 342465), (237, 329460), (255, 306204), (285, 273972), (289, 270180), (306, 255170), (316, 247095), (323, 241740), (340, 229653), (342, 228310), (380, 205479), (395, 197676), (474, 164730), (510, 153102), (570, 136986), (578, 135090), (612, 127585), (646, 120870), (684, 114155), (711, 109820), (765, 102068), (790, 98838), (855, 91324), (867, 90060), (948, 82365), (969, 80580), (1020, 76551), (1140, 68493), (1156, 67545), (1185, 65892), (1292, 60435), (1343, 58140), (1422, 54910), (1445, 54036), (1501, 52020), (1530, 51034), (1580, 49419), (1615, 48348), (1710, 45662), (1734, 45030), (1938, 40290), (2370, 32946), (2601, 30020), (2686, 29070), (2844, 27455), (2890, 27018), (2907, 26860), (3002, 26010), (3060, 25517), (3230, 24174), (3420, 22831), (3468, 22515), (3555, 21964), (3876, 20145), (4029, 19380), (4335, 18012), (4503, 17340), (4740, 16473), (4845, 16116), (5202, 15010), (5372, 14535), (5491, 14220), (5780, 13509), (5814, 13430), (6004, 13005), (6460, 12087), (6715, 11628), (7110, 10982), (7505, 10404), (8058, 9690), (8670, 9006)]