201251875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{401}}^1$

素因数の和:505

約数の個数: 40

約数和(自身を含む): 278798256

約数和(自身を除く): 77546381

約数列:

[1, 5, 11, 25, 55, 73, 125, 275, 365, 401, 625, 803, 1375, 1825, 2005, 4015, 4411, 6875, 9125, 10025, 20075, 22055, 29273, 45625, 50125, 100375, 110275, 146365, 250625, 322003, 501875, 551375, 731825, 1610015, 2756875, 3659125, 8050075, 18295625, 40250375, 201251875]

約数ペア:

[(1, 201251875), (5, 40250375), (11, 18295625), (25, 8050075), (55, 3659125), (73, 2756875), (125, 1610015), (275, 731825), (365, 551375), (401, 501875), (625, 322003), (803, 250625), (1375, 146365), (1825, 110275), (2005, 100375), (4015, 50125), (4411, 45625), (6875, 29273), (9125, 22055), (10025, 20075)]