81519120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:198

約数の個数: 240

約数和(自身を含む): 295963200

約数和(自身を除く): 214444080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 59, 60, 72, 76, 80, 90, 95, 101, 114, 118, 120, 144, 152, 171, 177, 180, 190, 202, 228, 236, 240, 285, 295, 303, 304, 342, 354, 360, 380, 404, 456, 472, 505, 531, 570, 590, 606, 684, 708, 720, 760, 808, 855, 885, 909, 912, 944, 1010, 1062, 1121, 1140, 1180, 1212, 1368, 1416, 1515, 1520, 1616, 1710, 1770, 1818, 1919, 2020, 2124, 2242, 2280, 2360, 2424, 2655, 2736, 2832, 3030, 3363, 3420, 3540, 3636, 3838, 4040, 4248, 4484, 4545, 4560, 4720, 4848, 5310, 5605, 5757, 5959, 6060, 6726, 6840, 7080, 7272, 7676, 8080, 8496, 8968, 9090, 9595, 10089, 10620, 11210, 11514, 11918, 12120, 13452, 13680, 14160, 14544, 15352, 16815, 17271, 17877, 17936, 18180, 19190, 20178, 21240, 22420, 23028, 23836, 24240, 26904, 28785, 29795, 30704, 33630, 34542, 35754, 36360, 38380, 40356, 42480, 44840, 46056, 47672, 50445, 53631, 53808, 57570, 59590, 67260, 69084, 71508, 72720, 76760, 80712, 86355, 89385, 89680, 92112, 95344, 100890, 107262, 113221, 115140, 119180, 134520, 138168, 143016, 153520, 161424, 172710, 178770, 201780, 214524, 226442, 230280, 238360, 268155, 269040, 276336, 286032, 339663, 345420, 357540, 403560, 429048, 452884, 460560, 476720, 536310, 566105, 679326, 690840, 715080, 807120, 858096, 905768, 1018989, 1072620, 1132210, 1358652, 1381680, 1430160, 1698315, 1811536, 2037978, 2145240, 2264420, 2717304, 3396630, 4075956, 4290480, 4528840, 5094945, 5434608, 6793260, 8151912, 9057680, 10189890, 13586520, 16303824, 20379780, 27173040, 40759560, 81519120]

約数ペア:

[(1, 81519120), (2, 40759560), (3, 27173040), (4, 20379780), (5, 16303824), (6, 13586520), (8, 10189890), (9, 9057680), (10, 8151912), (12, 6793260), (15, 5434608), (16, 5094945), (18, 4528840), (19, 4290480), (20, 4075956), (24, 3396630), (30, 2717304), (36, 2264420), (38, 2145240), (40, 2037978), (45, 1811536), (48, 1698315), (57, 1430160), (59, 1381680), (60, 1358652), (72, 1132210), (76, 1072620), (80, 1018989), (90, 905768), (95, 858096), (101, 807120), (114, 715080), (118, 690840), (120, 679326), (144, 566105), (152, 536310), (171, 476720), (177, 460560), (180, 452884), (190, 429048), (202, 403560), (228, 357540), (236, 345420), (240, 339663), (285, 286032), (295, 276336), (303, 269040), (304, 268155), (342, 238360), (354, 230280), (360, 226442), (380, 214524), (404, 201780), (456, 178770), (472, 172710), (505, 161424), (531, 153520), (570, 143016), (590, 138168), (606, 134520), (684, 119180), (708, 115140), (720, 113221), (760, 107262), (808, 100890), (855, 95344), (885, 92112), (909, 89680), (912, 89385), (944, 86355), (1010, 80712), (1062, 76760), (1121, 72720), (1140, 71508), (1180, 69084), (1212, 67260), (1368, 59590), (1416, 57570), (1515, 53808), (1520, 53631), (1616, 50445), (1710, 47672), (1770, 46056), (1818, 44840), (1919, 42480), (2020, 40356), (2124, 38380), (2242, 36360), (2280, 35754), (2360, 34542), (2424, 33630), (2655, 30704), (2736, 29795), (2832, 28785), (3030, 26904), (3363, 24240), (3420, 23836), (3540, 23028), (3636, 22420), (3838, 21240), (4040, 20178), (4248, 19190), (4484, 18180), (4545, 17936), (4560, 17877), (4720, 17271), (4848, 16815), (5310, 15352), (5605, 14544), (5757, 14160), (5959, 13680), (6060, 13452), (6726, 12120), (6840, 11918), (7080, 11514), (7272, 11210), (7676, 10620), (8080, 10089), (8496, 9595), (8968, 9090)]