31296640

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{619}}^1$

素因数の和:717

約数の個数: 64

約数和(自身を含む): 75888000

約数和(自身を除く): 44591360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 395, 619, 632, 640, 790, 1238, 1264, 1580, 2476, 2528, 3095, 3160, 4952, 5056, 6190, 6320, 9904, 10112, 12380, 12640, 19808, 24760, 25280, 39616, 48901, 49520, 50560, 79232, 97802, 99040, 195604, 198080, 244505, 391208, 396160, 489010, 782416, 978020, 1564832, 1956040, 3129664, 3912080, 6259328, 7824160, 15648320, 31296640]

約数ペア:

[(1, 31296640), (2, 15648320), (4, 7824160), (5, 6259328), (8, 3912080), (10, 3129664), (16, 1956040), (20, 1564832), (32, 978020), (40, 782416), (64, 489010), (79, 396160), (80, 391208), (128, 244505), (158, 198080), (160, 195604), (316, 99040), (320, 97802), (395, 79232), (619, 50560), (632, 49520), (640, 48901), (790, 39616), (1238, 25280), (1264, 24760), (1580, 19808), (2476, 12640), (2528, 12380), (3095, 10112), (3160, 9904), (4952, 6320), (5056, 6190)]