87783880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{35977}}^1$

素因数の和:36049

約数の個数: 32

約数和(自身を含む): 200757240

約数和(自身を除く): 112973360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 35977, 71954, 143908, 179885, 287816, 359770, 719540, 1439080, 2194597, 4389194, 8778388, 10972985, 17556776, 21945970, 43891940, 87783880]

約数ペア:

[(1, 87783880), (2, 43891940), (4, 21945970), (5, 17556776), (8, 10972985), (10, 8778388), (20, 4389194), (40, 2194597), (61, 1439080), (122, 719540), (244, 359770), (305, 287816), (488, 179885), (610, 143908), (1220, 71954), (2440, 35977)]