28371036680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{645383}}^1$

素因数の和:645558

約数の個数: 64

約数和(自身を含む): 73418883840

約数和(自身を除く): 45047847160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 157, 280, 314, 628, 785, 1099, 1256, 1570, 2198, 3140, 4396, 5495, 6280, 8792, 10990, 21980, 43960, 645383, 1290766, 2581532, 3226915, 4517681, 5163064, 6453830, 9035362, 12907660, 18070724, 22588405, 25815320, 36141448, 45176810, 90353620, 101325131, 180707240, 202650262, 405300524, 506625655, 709275917, 810601048, 1013251310, 1418551834, 2026502620, 2837103668, 3546379585, 4053005240, 5674207336, 7092759170, 14185518340, 28371036680]

約数ペア:

[(1, 28371036680), (2, 14185518340), (4, 7092759170), (5, 5674207336), (7, 4053005240), (8, 3546379585), (10, 2837103668), (14, 2026502620), (20, 1418551834), (28, 1013251310), (35, 810601048), (40, 709275917), (56, 506625655), (70, 405300524), (140, 202650262), (157, 180707240), (280, 101325131), (314, 90353620), (628, 45176810), (785, 36141448), (1099, 25815320), (1256, 22588405), (1570, 18070724), (2198, 12907660), (3140, 9035362), (4396, 6453830), (5495, 5163064), (6280, 4517681), (8792, 3226915), (10990, 2581532), (21980, 1290766), (43960, 645383)]