25215660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:208

約数の個数: 144

約数和(自身を含む): 82424160

約数和(自身を除く): 57208500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 73, 76, 90, 95, 101, 114, 146, 171, 180, 190, 202, 219, 228, 285, 292, 303, 342, 365, 380, 404, 438, 505, 570, 606, 657, 684, 730, 855, 876, 909, 1010, 1095, 1140, 1212, 1314, 1387, 1460, 1515, 1710, 1818, 1919, 2020, 2190, 2628, 2774, 3030, 3285, 3420, 3636, 3838, 4161, 4380, 4545, 5548, 5757, 6060, 6570, 6935, 7373, 7676, 8322, 9090, 9595, 11514, 12483, 13140, 13870, 14746, 16644, 17271, 18180, 19190, 20805, 22119, 23028, 24966, 27740, 28785, 29492, 34542, 36865, 38380, 41610, 44238, 49932, 57570, 62415, 66357, 69084, 73730, 83220, 86355, 88476, 110595, 115140, 124830, 132714, 140087, 147460, 172710, 221190, 249660, 265428, 280174, 331785, 345420, 420261, 442380, 560348, 663570, 700435, 840522, 1260783, 1327140, 1400870, 1681044, 2101305, 2521566, 2801740, 4202610, 5043132, 6303915, 8405220, 12607830, 25215660]

約数ペア:

[(1, 25215660), (2, 12607830), (3, 8405220), (4, 6303915), (5, 5043132), (6, 4202610), (9, 2801740), (10, 2521566), (12, 2101305), (15, 1681044), (18, 1400870), (19, 1327140), (20, 1260783), (30, 840522), (36, 700435), (38, 663570), (45, 560348), (57, 442380), (60, 420261), (73, 345420), (76, 331785), (90, 280174), (95, 265428), (101, 249660), (114, 221190), (146, 172710), (171, 147460), (180, 140087), (190, 132714), (202, 124830), (219, 115140), (228, 110595), (285, 88476), (292, 86355), (303, 83220), (342, 73730), (365, 69084), (380, 66357), (404, 62415), (438, 57570), (505, 49932), (570, 44238), (606, 41610), (657, 38380), (684, 36865), (730, 34542), (855, 29492), (876, 28785), (909, 27740), (1010, 24966), (1095, 23028), (1140, 22119), (1212, 20805), (1314, 19190), (1387, 18180), (1460, 17271), (1515, 16644), (1710, 14746), (1818, 13870), (1919, 13140), (2020, 12483), (2190, 11514), (2628, 9595), (2774, 9090), (3030, 8322), (3285, 7676), (3420, 7373), (3636, 6935), (3838, 6570), (4161, 6060), (4380, 5757), (4545, 5548)]