640599376

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{6121}}^1$

素因数の和:6371

約数の個数: 40

約数和(自身を含む): 1287481088

約数和(自身を除く): 646881712

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 211, 248, 422, 496, 844, 1688, 3376, 6121, 6541, 12242, 13082, 24484, 26164, 48968, 52328, 97936, 104656, 189751, 379502, 759004, 1291531, 1518008, 2583062, 3036016, 5166124, 10332248, 20664496, 40037461, 80074922, 160149844, 320299688, 640599376]

約数ペア:

[(1, 640599376), (2, 320299688), (4, 160149844), (8, 80074922), (16, 40037461), (31, 20664496), (62, 10332248), (124, 5166124), (211, 3036016), (248, 2583062), (422, 1518008), (496, 1291531), (844, 759004), (1688, 379502), (3376, 189751), (6121, 104656), (6541, 97936), (12242, 52328), (13082, 48968), (24484, 26164)]