72780640

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:392

約数の個数: 96

約数和(自身を含む): 183708000

約数和(自身を除く): 110927360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 89, 95, 152, 160, 178, 190, 269, 304, 356, 380, 445, 538, 608, 712, 760, 890, 1076, 1345, 1424, 1520, 1691, 1780, 2152, 2690, 2848, 3040, 3382, 3560, 4304, 5111, 5380, 6764, 7120, 8455, 8608, 10222, 10760, 13528, 14240, 16910, 20444, 21520, 23941, 25555, 27056, 33820, 40888, 43040, 47882, 51110, 54112, 67640, 81776, 95764, 102220, 119705, 135280, 163552, 191528, 204440, 239410, 270560, 383056, 408880, 454879, 478820, 766112, 817760, 909758, 957640, 1819516, 1915280, 2274395, 3639032, 3830560, 4548790, 7278064, 9097580, 14556128, 18195160, 36390320, 72780640]

約数ペア:

[(1, 72780640), (2, 36390320), (4, 18195160), (5, 14556128), (8, 9097580), (10, 7278064), (16, 4548790), (19, 3830560), (20, 3639032), (32, 2274395), (38, 1915280), (40, 1819516), (76, 957640), (80, 909758), (89, 817760), (95, 766112), (152, 478820), (160, 454879), (178, 408880), (190, 383056), (269, 270560), (304, 239410), (356, 204440), (380, 191528), (445, 163552), (538, 135280), (608, 119705), (712, 102220), (760, 95764), (890, 81776), (1076, 67640), (1345, 54112), (1424, 51110), (1520, 47882), (1691, 43040), (1780, 40888), (2152, 33820), (2690, 27056), (2848, 25555), (3040, 23941), (3382, 21520), (3560, 20444), (4304, 16910), (5111, 14240), (5380, 13528), (6764, 10760), (7120, 10222), (8455, 8608)]