28508580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{631}}^1$

素因数の和:897

約数の個数: 72

約数和(自身を含む): 86958144

約数和(自身を除く): 58449564

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 251, 502, 631, 753, 1004, 1255, 1262, 1506, 1893, 2259, 2510, 2524, 3012, 3155, 3765, 3786, 4518, 5020, 5679, 6310, 7530, 7572, 9036, 9465, 11295, 11358, 12620, 15060, 18930, 22590, 22716, 28395, 37860, 45180, 56790, 113580, 158381, 316762, 475143, 633524, 791905, 950286, 1425429, 1583810, 1900572, 2375715, 2850858, 3167620, 4751430, 5701716, 7127145, 9502860, 14254290, 28508580]

約数ペア:

[(1, 28508580), (2, 14254290), (3, 9502860), (4, 7127145), (5, 5701716), (6, 4751430), (9, 3167620), (10, 2850858), (12, 2375715), (15, 1900572), (18, 1583810), (20, 1425429), (30, 950286), (36, 791905), (45, 633524), (60, 475143), (90, 316762), (180, 158381), (251, 113580), (502, 56790), (631, 45180), (753, 37860), (1004, 28395), (1255, 22716), (1262, 22590), (1506, 18930), (1893, 15060), (2259, 12620), (2510, 11358), (2524, 11295), (3012, 9465), (3155, 9036), (3765, 7572), (3786, 7530), (4518, 6310), (5020, 5679)]