493038640

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{69247}}^1$

素因数の和:69349

約数の個数: 40

約数和(自身を含む): 1159211520

約数和(自身を除く): 666172880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 69247, 138494, 276988, 346235, 553976, 692470, 1107952, 1384940, 2769880, 5539760, 6162983, 12325966, 24651932, 30814915, 49303864, 61629830, 98607728, 123259660, 246519320, 493038640]

約数ペア:

[(1, 493038640), (2, 246519320), (4, 123259660), (5, 98607728), (8, 61629830), (10, 49303864), (16, 30814915), (20, 24651932), (40, 12325966), (80, 6162983), (89, 5539760), (178, 2769880), (356, 1384940), (445, 1107952), (712, 692470), (890, 553976), (1424, 346235), (1780, 276988), (3560, 138494), (7120, 69247)]