31201000

素因数分解:

$2^3\times 5^3\times {\mathrm{41}}^1\times {\mathrm{761}}^1$

素因数の和:823

約数の個数: 64

約数和(自身を含む): 74889360

約数和(自身を除く): 43688360

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 125, 164, 200, 205, 250, 328, 410, 500, 761, 820, 1000, 1025, 1522, 1640, 2050, 3044, 3805, 4100, 5125, 6088, 7610, 8200, 10250, 15220, 19025, 20500, 30440, 31201, 38050, 41000, 62402, 76100, 95125, 124804, 152200, 156005, 190250, 249608, 312010, 380500, 624020, 761000, 780025, 1248040, 1560050, 3120100, 3900125, 6240200, 7800250, 15600500, 31201000]

約数ペア:

[(1, 31201000), (2, 15600500), (4, 7800250), (5, 6240200), (8, 3900125), (10, 3120100), (20, 1560050), (25, 1248040), (40, 780025), (41, 761000), (50, 624020), (82, 380500), (100, 312010), (125, 249608), (164, 190250), (200, 156005), (205, 152200), (250, 124804), (328, 95125), (410, 76100), (500, 62402), (761, 41000), (820, 38050), (1000, 31201), (1025, 30440), (1522, 20500), (1640, 19025), (2050, 15220), (3044, 10250), (3805, 8200), (4100, 7610), (5125, 6088)]