207949860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{449}}^1$

素因数の和:578

約数の個数: 144

約数和(自身を含む): 660441600

約数和(自身を除く): 452491740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 83, 90, 93, 124, 155, 166, 180, 186, 249, 279, 310, 332, 372, 415, 449, 465, 498, 558, 620, 747, 830, 898, 930, 996, 1116, 1245, 1347, 1395, 1494, 1660, 1796, 1860, 2245, 2490, 2573, 2694, 2790, 2988, 3735, 4041, 4490, 4980, 5146, 5388, 5580, 6735, 7470, 7719, 8082, 8980, 10292, 12865, 13470, 13919, 14940, 15438, 16164, 20205, 23157, 25730, 26940, 27838, 30876, 37267, 38595, 40410, 41757, 46314, 51460, 55676, 69595, 74534, 77190, 80820, 83514, 92628, 111801, 115785, 125271, 139190, 149068, 154380, 167028, 186335, 208785, 223602, 231570, 250542, 278380, 335403, 372670, 417570, 447204, 463140, 501084, 559005, 626355, 670806, 745340, 835140, 1118010, 1155277, 1252710, 1341612, 1677015, 2236020, 2310554, 2505420, 3354030, 3465831, 4621108, 5776385, 6708060, 6931662, 10397493, 11552770, 13863324, 17329155, 20794986, 23105540, 34658310, 41589972, 51987465, 69316620, 103974930, 207949860]

約数ペア:

[(1, 207949860), (2, 103974930), (3, 69316620), (4, 51987465), (5, 41589972), (6, 34658310), (9, 23105540), (10, 20794986), (12, 17329155), (15, 13863324), (18, 11552770), (20, 10397493), (30, 6931662), (31, 6708060), (36, 5776385), (45, 4621108), (60, 3465831), (62, 3354030), (83, 2505420), (90, 2310554), (93, 2236020), (124, 1677015), (155, 1341612), (166, 1252710), (180, 1155277), (186, 1118010), (249, 835140), (279, 745340), (310, 670806), (332, 626355), (372, 559005), (415, 501084), (449, 463140), (465, 447204), (498, 417570), (558, 372670), (620, 335403), (747, 278380), (830, 250542), (898, 231570), (930, 223602), (996, 208785), (1116, 186335), (1245, 167028), (1347, 154380), (1395, 149068), (1494, 139190), (1660, 125271), (1796, 115785), (1860, 111801), (2245, 92628), (2490, 83514), (2573, 80820), (2694, 77190), (2790, 74534), (2988, 69595), (3735, 55676), (4041, 51460), (4490, 46314), (4980, 41757), (5146, 40410), (5388, 38595), (5580, 37267), (6735, 30876), (7470, 27838), (7719, 26940), (8082, 25730), (8980, 23157), (10292, 20205), (12865, 16164), (13470, 15438), (13919, 14940)]