338955440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{1289}}^1$

素因数の和:1494

約数の個数: 80

約数和(自身を含む): 834991200

約数和(自身を除く): 496035760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 173, 190, 304, 346, 380, 692, 760, 865, 1289, 1384, 1520, 1730, 2578, 2768, 3287, 3460, 5156, 6445, 6574, 6920, 10312, 12890, 13148, 13840, 16435, 20624, 24491, 25780, 26296, 32870, 48982, 51560, 52592, 65740, 97964, 103120, 122455, 131480, 195928, 222997, 244910, 262960, 391856, 445994, 489820, 891988, 979640, 1114985, 1783976, 1959280, 2229970, 3567952, 4236943, 4459940, 8473886, 8919880, 16947772, 17839760, 21184715, 33895544, 42369430, 67791088, 84738860, 169477720, 338955440]

約数ペア:

[(1, 338955440), (2, 169477720), (4, 84738860), (5, 67791088), (8, 42369430), (10, 33895544), (16, 21184715), (19, 17839760), (20, 16947772), (38, 8919880), (40, 8473886), (76, 4459940), (80, 4236943), (95, 3567952), (152, 2229970), (173, 1959280), (190, 1783976), (304, 1114985), (346, 979640), (380, 891988), (692, 489820), (760, 445994), (865, 391856), (1289, 262960), (1384, 244910), (1520, 222997), (1730, 195928), (2578, 131480), (2768, 122455), (3287, 103120), (3460, 97964), (5156, 65740), (6445, 52592), (6574, 51560), (6920, 48982), (10312, 32870), (12890, 26296), (13148, 25780), (13840, 24491), (16435, 20624)]