209839920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{5569}}^1$

素因数の和:5742

約数の個数: 80

約数和(自身を含む): 654764640

約数和(自身を除く): 444924720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 157, 240, 314, 471, 628, 785, 942, 1256, 1570, 1884, 2355, 2512, 3140, 3768, 4710, 5569, 6280, 7536, 9420, 11138, 12560, 16707, 18840, 22276, 27845, 33414, 37680, 44552, 55690, 66828, 83535, 89104, 111380, 133656, 167070, 222760, 267312, 334140, 445520, 668280, 874333, 1336560, 1748666, 2622999, 3497332, 4371665, 5245998, 6994664, 8743330, 10491996, 13114995, 13989328, 17486660, 20983992, 26229990, 34973320, 41967984, 52459980, 69946640, 104919960, 209839920]

約数ペア:

[(1, 209839920), (2, 104919960), (3, 69946640), (4, 52459980), (5, 41967984), (6, 34973320), (8, 26229990), (10, 20983992), (12, 17486660), (15, 13989328), (16, 13114995), (20, 10491996), (24, 8743330), (30, 6994664), (40, 5245998), (48, 4371665), (60, 3497332), (80, 2622999), (120, 1748666), (157, 1336560), (240, 874333), (314, 668280), (471, 445520), (628, 334140), (785, 267312), (942, 222760), (1256, 167070), (1570, 133656), (1884, 111380), (2355, 89104), (2512, 83535), (3140, 66828), (3768, 55690), (4710, 44552), (5569, 37680), (6280, 33414), (7536, 27845), (9420, 22276), (11138, 18840), (12560, 16707)]