81182240

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5701}}^1$

素因数の和:5805

約数の個数: 48

約数和(自身を含む): 193982040

約数和(自身を除く): 112799800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1424, 1780, 2848, 3560, 5701, 7120, 11402, 14240, 22804, 28505, 45608, 57010, 91216, 114020, 182432, 228040, 456080, 507389, 912160, 1014778, 2029556, 2536945, 4059112, 5073890, 8118224, 10147780, 16236448, 20295560, 40591120, 81182240]

約数ペア:

[(1, 81182240), (2, 40591120), (4, 20295560), (5, 16236448), (8, 10147780), (10, 8118224), (16, 5073890), (20, 4059112), (32, 2536945), (40, 2029556), (80, 1014778), (89, 912160), (160, 507389), (178, 456080), (356, 228040), (445, 182432), (712, 114020), (890, 91216), (1424, 57010), (1780, 45608), (2848, 28505), (3560, 22804), (5701, 14240), (7120, 11402)]