8978830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 20021760

約数和(自身を除く): 11042930

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 43, 70, 86, 95, 133, 157, 190, 215, 266, 301, 314, 430, 602, 665, 785, 817, 1099, 1330, 1505, 1570, 1634, 2198, 2983, 3010, 4085, 5495, 5719, 5966, 6751, 8170, 10990, 11438, 13502, 14915, 20881, 28595, 29830, 33755, 41762, 47257, 57190, 67510, 94514, 104405, 128269, 208810, 236285, 256538, 472570, 641345, 897883, 1282690, 1795766, 4489415, 8978830]

約数ペア:

[(1, 8978830), (2, 4489415), (5, 1795766), (7, 1282690), (10, 897883), (14, 641345), (19, 472570), (35, 256538), (38, 236285), (43, 208810), (70, 128269), (86, 104405), (95, 94514), (133, 67510), (157, 57190), (190, 47257), (215, 41762), (266, 33755), (301, 29830), (314, 28595), (430, 20881), (602, 14915), (665, 13502), (785, 11438), (817, 10990), (1099, 8170), (1330, 6751), (1505, 5966), (1570, 5719), (1634, 5495), (2198, 4085), (2983, 3010)]