128445700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1009}}^1$

素因数の和:1109

約数の個数: 72

約数和(自身を含む): 298071200

約数和(自身を除く): 169625500

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 67, 76, 95, 100, 134, 190, 268, 335, 380, 475, 670, 950, 1009, 1273, 1340, 1675, 1900, 2018, 2546, 3350, 4036, 5045, 5092, 6365, 6700, 10090, 12730, 19171, 20180, 25225, 25460, 31825, 38342, 50450, 63650, 67603, 76684, 95855, 100900, 127300, 135206, 191710, 270412, 338015, 383420, 479275, 676030, 958550, 1284457, 1352060, 1690075, 1917100, 2568914, 3380150, 5137828, 6422285, 6760300, 12844570, 25689140, 32111425, 64222850, 128445700]

約数ペア:

[(1, 128445700), (2, 64222850), (4, 32111425), (5, 25689140), (10, 12844570), (19, 6760300), (20, 6422285), (25, 5137828), (38, 3380150), (50, 2568914), (67, 1917100), (76, 1690075), (95, 1352060), (100, 1284457), (134, 958550), (190, 676030), (268, 479275), (335, 383420), (380, 338015), (475, 270412), (670, 191710), (950, 135206), (1009, 127300), (1273, 100900), (1340, 95855), (1675, 76684), (1900, 67603), (2018, 63650), (2546, 50450), (3350, 38342), (4036, 31825), (5045, 25460), (5092, 25225), (6365, 20180), (6700, 19171), (10090, 12730)]