308128520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{4723}}^1$

素因数の和:4974

約数の個数: 64

約数和(自身を含む): 795899520

約数和(自身を除く): 487771000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 233, 280, 466, 932, 1165, 1631, 1864, 2330, 3262, 4660, 4723, 6524, 8155, 9320, 9446, 13048, 16310, 18892, 23615, 32620, 33061, 37784, 47230, 65240, 66122, 94460, 132244, 165305, 188920, 264488, 330610, 661220, 1100459, 1322440, 2200918, 4401836, 5502295, 7703213, 8803672, 11004590, 15406426, 22009180, 30812852, 38516065, 44018360, 61625704, 77032130, 154064260, 308128520]

約数ペア:

[(1, 308128520), (2, 154064260), (4, 77032130), (5, 61625704), (7, 44018360), (8, 38516065), (10, 30812852), (14, 22009180), (20, 15406426), (28, 11004590), (35, 8803672), (40, 7703213), (56, 5502295), (70, 4401836), (140, 2200918), (233, 1322440), (280, 1100459), (466, 661220), (932, 330610), (1165, 264488), (1631, 188920), (1864, 165305), (2330, 132244), (3262, 94460), (4660, 66122), (4723, 65240), (6524, 47230), (8155, 37784), (9320, 33061), (9446, 32620), (13048, 23615), (16310, 18892)]