28867150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:613

約数の個数: 48

約数和(自身を含む): 58590000

約数和(自身を除く): 29722850

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 89, 130, 178, 325, 445, 499, 650, 890, 998, 1157, 2225, 2314, 2495, 4450, 4990, 5785, 6487, 11570, 12475, 12974, 24950, 28925, 32435, 44411, 57850, 64870, 88822, 162175, 222055, 324350, 444110, 577343, 1110275, 1154686, 2220550, 2886715, 5773430, 14433575, 28867150]

約数ペア:

[(1, 28867150), (2, 14433575), (5, 5773430), (10, 2886715), (13, 2220550), (25, 1154686), (26, 1110275), (50, 577343), (65, 444110), (89, 324350), (130, 222055), (178, 162175), (325, 88822), (445, 64870), (499, 57850), (650, 44411), (890, 32435), (998, 28925), (1157, 24950), (2225, 12974), (2314, 12475), (2495, 11570), (4450, 6487), (4990, 5785)]