7848996880

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1608401}}^1$

素因数の和:1608475

約数の個数: 40

約数和(自身を含む): 18548091864

約数和(自身を除く): 10699094984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 1608401, 3216802, 6433604, 8042005, 12867208, 16084010, 25734416, 32168020, 64336040, 98112461, 128672080, 196224922, 392449844, 490562305, 784899688, 981124610, 1569799376, 1962249220, 3924498440, 7848996880]

約数ペア:

[(1, 7848996880), (2, 3924498440), (4, 1962249220), (5, 1569799376), (8, 981124610), (10, 784899688), (16, 490562305), (20, 392449844), (40, 196224922), (61, 128672080), (80, 98112461), (122, 64336040), (244, 32168020), (305, 25734416), (488, 16084010), (610, 12867208), (976, 8042005), (1220, 6433604), (2440, 3216802), (4880, 1608401)]