128919720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:343

約数の個数: 128

約数和(自身を含む): 399168000

約数和(自身を除く): 270248280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 59, 60, 118, 120, 131, 139, 177, 236, 262, 278, 295, 354, 393, 417, 472, 524, 556, 590, 655, 695, 708, 786, 834, 885, 1048, 1112, 1180, 1310, 1390, 1416, 1572, 1668, 1770, 1965, 2085, 2360, 2620, 2780, 3144, 3336, 3540, 3930, 4170, 5240, 5560, 7080, 7729, 7860, 8201, 8340, 15458, 15720, 16402, 16680, 18209, 23187, 24603, 30916, 32804, 36418, 38645, 41005, 46374, 49206, 54627, 61832, 65608, 72836, 77290, 82010, 91045, 92748, 98412, 109254, 115935, 123015, 145672, 154580, 164020, 182090, 185496, 196824, 218508, 231870, 246030, 273135, 309160, 328040, 364180, 437016, 463740, 492060, 546270, 728360, 927480, 984120, 1074331, 1092540, 2148662, 2185080, 3222993, 4297324, 5371655, 6445986, 8594648, 10743310, 12891972, 16114965, 21486620, 25783944, 32229930, 42973240, 64459860, 128919720]

約数ペア:

[(1, 128919720), (2, 64459860), (3, 42973240), (4, 32229930), (5, 25783944), (6, 21486620), (8, 16114965), (10, 12891972), (12, 10743310), (15, 8594648), (20, 6445986), (24, 5371655), (30, 4297324), (40, 3222993), (59, 2185080), (60, 2148662), (118, 1092540), (120, 1074331), (131, 984120), (139, 927480), (177, 728360), (236, 546270), (262, 492060), (278, 463740), (295, 437016), (354, 364180), (393, 328040), (417, 309160), (472, 273135), (524, 246030), (556, 231870), (590, 218508), (655, 196824), (695, 185496), (708, 182090), (786, 164020), (834, 154580), (885, 145672), (1048, 123015), (1112, 115935), (1180, 109254), (1310, 98412), (1390, 92748), (1416, 91045), (1572, 82010), (1668, 77290), (1770, 72836), (1965, 65608), (2085, 61832), (2360, 54627), (2620, 49206), (2780, 46374), (3144, 41005), (3336, 38645), (3540, 36418), (3930, 32804), (4170, 30916), (5240, 24603), (5560, 23187), (7080, 18209), (7729, 16680), (7860, 16402), (8201, 15720), (8340, 15458)]