51378280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1009}}^1$

素因数の和:1106

約数の個数: 64

約数和(自身を含む): 123624000

約数和(自身を除く): 72245720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 67, 76, 95, 134, 152, 190, 268, 335, 380, 536, 670, 760, 1009, 1273, 1340, 2018, 2546, 2680, 4036, 5045, 5092, 6365, 8072, 10090, 10184, 12730, 19171, 20180, 25460, 38342, 40360, 50920, 67603, 76684, 95855, 135206, 153368, 191710, 270412, 338015, 383420, 540824, 676030, 766840, 1284457, 1352060, 2568914, 2704120, 5137828, 6422285, 10275656, 12844570, 25689140, 51378280]

約数ペア:

[(1, 51378280), (2, 25689140), (4, 12844570), (5, 10275656), (8, 6422285), (10, 5137828), (19, 2704120), (20, 2568914), (38, 1352060), (40, 1284457), (67, 766840), (76, 676030), (95, 540824), (134, 383420), (152, 338015), (190, 270412), (268, 191710), (335, 153368), (380, 135206), (536, 95855), (670, 76684), (760, 67603), (1009, 50920), (1273, 40360), (1340, 38342), (2018, 25460), (2546, 20180), (2680, 19171), (4036, 12730), (5045, 10184), (5092, 10090), (6365, 8072)]