78310000

素因数分解:

$2^4\times 5^4\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:260

約数の個数: 100

約数和(自身を含む): 195237504

約数和(自身を除く): 116927504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 125, 164, 191, 200, 205, 250, 328, 382, 400, 410, 500, 625, 656, 764, 820, 955, 1000, 1025, 1250, 1528, 1640, 1910, 2000, 2050, 2500, 3056, 3280, 3820, 4100, 4775, 5000, 5125, 7640, 7831, 8200, 9550, 10000, 10250, 15280, 15662, 16400, 19100, 20500, 23875, 25625, 31324, 38200, 39155, 41000, 47750, 51250, 62648, 76400, 78310, 82000, 95500, 102500, 119375, 125296, 156620, 191000, 195775, 205000, 238750, 313240, 382000, 391550, 410000, 477500, 626480, 783100, 955000, 978875, 1566200, 1910000, 1957750, 3132400, 3915500, 4894375, 7831000, 9788750, 15662000, 19577500, 39155000, 78310000]

約数ペア:

[(1, 78310000), (2, 39155000), (4, 19577500), (5, 15662000), (8, 9788750), (10, 7831000), (16, 4894375), (20, 3915500), (25, 3132400), (40, 1957750), (41, 1910000), (50, 1566200), (80, 978875), (82, 955000), (100, 783100), (125, 626480), (164, 477500), (191, 410000), (200, 391550), (205, 382000), (250, 313240), (328, 238750), (382, 205000), (400, 195775), (410, 191000), (500, 156620), (625, 125296), (656, 119375), (764, 102500), (820, 95500), (955, 82000), (1000, 78310), (1025, 76400), (1250, 62648), (1528, 51250), (1640, 47750), (1910, 41000), (2000, 39155), (2050, 38200), (2500, 31324), (3056, 25625), (3280, 23875), (3820, 20500), (4100, 19100), (4775, 16400), (5000, 15662), (5125, 15280), (7640, 10250), (7831, 10000), (8200, 9550)]