16176875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1$

素因数の和:225

約数の個数: 40

約数和(自身を含む): 23879856

約数和(自身を除く): 7702981

約数列:

[1, 5, 11, 13, 25, 55, 65, 125, 143, 181, 275, 325, 625, 715, 905, 1375, 1625, 1991, 2353, 3575, 4525, 6875, 8125, 9955, 11765, 17875, 22625, 25883, 49775, 58825, 89375, 113125, 129415, 248875, 294125, 647075, 1244375, 1470625, 3235375, 16176875]

約数ペア:

[(1, 16176875), (5, 3235375), (11, 1470625), (13, 1244375), (25, 647075), (55, 294125), (65, 248875), (125, 129415), (143, 113125), (181, 89375), (275, 58825), (325, 49775), (625, 25883), (715, 22625), (905, 17875), (1375, 11765), (1625, 9955), (1991, 8125), (2353, 6875), (3575, 4525)]