71013100

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 159364800

約数和(自身を除く): 88351700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 89, 100, 101, 158, 178, 202, 316, 356, 395, 404, 445, 505, 790, 890, 1010, 1580, 1780, 1975, 2020, 2225, 2525, 3950, 4450, 5050, 7031, 7900, 7979, 8900, 8989, 10100, 14062, 15958, 17978, 28124, 31916, 35155, 35956, 39895, 44945, 70310, 79790, 89890, 140620, 159580, 175775, 179780, 199475, 224725, 351550, 398950, 449450, 703100, 710131, 797900, 898900, 1420262, 2840524, 3550655, 7101310, 14202620, 17753275, 35506550, 71013100]

約数ペア:

[(1, 71013100), (2, 35506550), (4, 17753275), (5, 14202620), (10, 7101310), (20, 3550655), (25, 2840524), (50, 1420262), (79, 898900), (89, 797900), (100, 710131), (101, 703100), (158, 449450), (178, 398950), (202, 351550), (316, 224725), (356, 199475), (395, 179780), (404, 175775), (445, 159580), (505, 140620), (790, 89890), (890, 79790), (1010, 70310), (1580, 44945), (1780, 39895), (1975, 35956), (2020, 35155), (2225, 31916), (2525, 28124), (3950, 17978), (4450, 15958), (5050, 14062), (7031, 10100), (7900, 8989), (7979, 8900)]