15405840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{21397}}^1$

素因数の和:21416

約数の個数: 60

約数和(自身を含む): 51740364

約数和(自身を除く): 36334524

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 21397, 42794, 64191, 85588, 106985, 128382, 171176, 192573, 213970, 256764, 320955, 342352, 385146, 427940, 513528, 641910, 770292, 855880, 962865, 1027056, 1283820, 1540584, 1711760, 1925730, 2567640, 3081168, 3851460, 5135280, 7702920, 15405840]

約数ペア:

[(1, 15405840), (2, 7702920), (3, 5135280), (4, 3851460), (5, 3081168), (6, 2567640), (8, 1925730), (9, 1711760), (10, 1540584), (12, 1283820), (15, 1027056), (16, 962865), (18, 855880), (20, 770292), (24, 641910), (30, 513528), (36, 427940), (40, 385146), (45, 342352), (48, 320955), (60, 256764), (72, 213970), (80, 192573), (90, 171176), (120, 128382), (144, 106985), (180, 85588), (240, 64191), (360, 42794), (720, 21397)]