78662320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1259}}^1$

素因数の和:1354

約数の個数: 80

約数和(自身を含む): 202487040

約数和(自身を除く): 123824720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 568, 710, 781, 880, 1136, 1259, 1420, 1562, 2518, 2840, 3124, 3905, 5036, 5680, 6248, 6295, 7810, 10072, 12496, 12590, 13849, 15620, 20144, 25180, 27698, 31240, 50360, 55396, 62480, 69245, 89389, 100720, 110792, 138490, 178778, 221584, 276980, 357556, 446945, 553960, 715112, 893890, 983279, 1107920, 1430224, 1787780, 1966558, 3575560, 3933116, 4916395, 7151120, 7866232, 9832790, 15732464, 19665580, 39331160, 78662320]

約数ペア:

[(1, 78662320), (2, 39331160), (4, 19665580), (5, 15732464), (8, 9832790), (10, 7866232), (11, 7151120), (16, 4916395), (20, 3933116), (22, 3575560), (40, 1966558), (44, 1787780), (55, 1430224), (71, 1107920), (80, 983279), (88, 893890), (110, 715112), (142, 553960), (176, 446945), (220, 357556), (284, 276980), (355, 221584), (440, 178778), (568, 138490), (710, 110792), (781, 100720), (880, 89389), (1136, 69245), (1259, 62480), (1420, 55396), (1562, 50360), (2518, 31240), (2840, 27698), (3124, 25180), (3905, 20144), (5036, 15620), (5680, 13849), (6248, 12590), (6295, 12496), (7810, 10072)]