20253430

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:173

約数の個数: 64

約数和(自身を含む): 40930560

約数和(自身を除く): 20677130

約数列:

[1, 2, 5, 10, 19, 37, 38, 43, 67, 74, 86, 95, 134, 185, 190, 215, 335, 370, 430, 670, 703, 817, 1273, 1406, 1591, 1634, 2479, 2546, 2881, 3182, 3515, 4085, 4958, 5762, 6365, 7030, 7955, 8170, 12395, 12730, 14405, 15910, 24790, 28810, 30229, 47101, 54739, 60458, 94202, 106597, 109478, 151145, 213194, 235505, 273695, 302290, 471010, 532985, 547390, 1065970, 2025343, 4050686, 10126715, 20253430]

約数ペア:

[(1, 20253430), (2, 10126715), (5, 4050686), (10, 2025343), (19, 1065970), (37, 547390), (38, 532985), (43, 471010), (67, 302290), (74, 273695), (86, 235505), (95, 213194), (134, 151145), (185, 109478), (190, 106597), (215, 94202), (335, 60458), (370, 54739), (430, 47101), (670, 30229), (703, 28810), (817, 24790), (1273, 15910), (1406, 14405), (1591, 12730), (1634, 12395), (2479, 8170), (2546, 7955), (2881, 7030), (3182, 6365), (3515, 5762), (4085, 4958)]