81754480

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:442

約数の個数: 80

約数和(自身を含む): 198871200

約数和(自身を除く): 117116720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 131, 145, 232, 262, 269, 290, 464, 524, 538, 580, 655, 1048, 1076, 1160, 1310, 1345, 2096, 2152, 2320, 2620, 2690, 3799, 4304, 5240, 5380, 7598, 7801, 10480, 10760, 15196, 15602, 18995, 21520, 30392, 31204, 35239, 37990, 39005, 60784, 62408, 70478, 75980, 78010, 124816, 140956, 151960, 156020, 176195, 281912, 303920, 312040, 352390, 563824, 624080, 704780, 1021931, 1409560, 2043862, 2819120, 4087724, 5109655, 8175448, 10219310, 16350896, 20438620, 40877240, 81754480]

約数ペア:

[(1, 81754480), (2, 40877240), (4, 20438620), (5, 16350896), (8, 10219310), (10, 8175448), (16, 5109655), (20, 4087724), (29, 2819120), (40, 2043862), (58, 1409560), (80, 1021931), (116, 704780), (131, 624080), (145, 563824), (232, 352390), (262, 312040), (269, 303920), (290, 281912), (464, 176195), (524, 156020), (538, 151960), (580, 140956), (655, 124816), (1048, 78010), (1076, 75980), (1160, 70478), (1310, 62408), (1345, 60784), (2096, 39005), (2152, 37990), (2320, 35239), (2620, 31204), (2690, 30392), (3799, 21520), (4304, 18995), (5240, 15602), (5380, 15196), (7598, 10760), (7801, 10480)]