18145000

素因数分解:

$2^3\times 5^4\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:236

約数の個数: 80

約数和(自身を含む): 44985600

約数和(自身を除く): 26840600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 191, 200, 250, 380, 382, 475, 500, 625, 760, 764, 950, 955, 1000, 1250, 1528, 1900, 1910, 2375, 2500, 3629, 3800, 3820, 4750, 4775, 5000, 7258, 7640, 9500, 9550, 11875, 14516, 18145, 19000, 19100, 23750, 23875, 29032, 36290, 38200, 47500, 47750, 72580, 90725, 95000, 95500, 119375, 145160, 181450, 191000, 238750, 362900, 453625, 477500, 725800, 907250, 955000, 1814500, 2268125, 3629000, 4536250, 9072500, 18145000]

約数ペア:

[(1, 18145000), (2, 9072500), (4, 4536250), (5, 3629000), (8, 2268125), (10, 1814500), (19, 955000), (20, 907250), (25, 725800), (38, 477500), (40, 453625), (50, 362900), (76, 238750), (95, 191000), (100, 181450), (125, 145160), (152, 119375), (190, 95500), (191, 95000), (200, 90725), (250, 72580), (380, 47750), (382, 47500), (475, 38200), (500, 36290), (625, 29032), (760, 23875), (764, 23750), (950, 19100), (955, 19000), (1000, 18145), (1250, 14516), (1528, 11875), (1900, 9550), (1910, 9500), (2375, 7640), (2500, 7258), (3629, 5000), (3800, 4775), (3820, 4750)]