148842440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{61001}}^1$

素因数の和:61073

約数の個数: 32

約数和(自身を含む): 340391160

約数和(自身を除く): 191548720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 61001, 122002, 244004, 305005, 488008, 610010, 1220020, 2440040, 3721061, 7442122, 14884244, 18605305, 29768488, 37210610, 74421220, 148842440]

約数ペア:

[(1, 148842440), (2, 74421220), (4, 37210610), (5, 29768488), (8, 18605305), (10, 14884244), (20, 7442122), (40, 3721061), (61, 2440040), (122, 1220020), (244, 610010), (305, 488008), (488, 305005), (610, 244004), (1220, 122002), (2440, 61001)]