64987880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{70639}}^1$

素因数の和:70673

約数の個数: 32

約数和(自身を含む): 152582400

約数和(自身を除く): 87594520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 70639, 141278, 282556, 353195, 565112, 706390, 1412780, 1624697, 2825560, 3249394, 6498788, 8123485, 12997576, 16246970, 32493940, 64987880]

約数ペア:

[(1, 64987880), (2, 32493940), (4, 16246970), (5, 12997576), (8, 8123485), (10, 6498788), (20, 3249394), (23, 2825560), (40, 1624697), (46, 1412780), (92, 706390), (115, 565112), (184, 353195), (230, 282556), (460, 141278), (920, 70639)]