317723960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{997}}^1$

素因数の和:1296

約数の個数: 64

約数和(自身を含む): 741553920

約数和(自身を除く): 423829960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 257, 310, 514, 620, 997, 1028, 1240, 1285, 1994, 2056, 2570, 3988, 4985, 5140, 7967, 7976, 9970, 10280, 15934, 19940, 30907, 31868, 39835, 39880, 61814, 63736, 79670, 123628, 154535, 159340, 247256, 256229, 309070, 318680, 512458, 618140, 1024916, 1236280, 1281145, 2049832, 2562290, 5124580, 7943099, 10249160, 15886198, 31772396, 39715495, 63544792, 79430990, 158861980, 317723960]

約数ペア:

[(1, 317723960), (2, 158861980), (4, 79430990), (5, 63544792), (8, 39715495), (10, 31772396), (20, 15886198), (31, 10249160), (40, 7943099), (62, 5124580), (124, 2562290), (155, 2049832), (248, 1281145), (257, 1236280), (310, 1024916), (514, 618140), (620, 512458), (997, 318680), (1028, 309070), (1240, 256229), (1285, 247256), (1994, 159340), (2056, 154535), (2570, 123628), (3988, 79670), (4985, 63736), (5140, 61814), (7967, 39880), (7976, 39835), (9970, 31868), (10280, 30907), (15934, 19940)]