20195450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{503}}^1$

素因数の和:599

約数の個数: 48

約数和(自身を含む): 41622336

約数和(自身を除く): 21426886

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 73, 110, 146, 275, 365, 503, 550, 730, 803, 1006, 1606, 1825, 2515, 3650, 4015, 5030, 5533, 8030, 11066, 12575, 20075, 25150, 27665, 36719, 40150, 55330, 73438, 138325, 183595, 276650, 367190, 403909, 807818, 917975, 1835950, 2019545, 4039090, 10097725, 20195450]

約数ペア:

[(1, 20195450), (2, 10097725), (5, 4039090), (10, 2019545), (11, 1835950), (22, 917975), (25, 807818), (50, 403909), (55, 367190), (73, 276650), (110, 183595), (146, 138325), (275, 73438), (365, 55330), (503, 40150), (550, 36719), (730, 27665), (803, 25150), (1006, 20075), (1606, 12575), (1825, 11066), (2515, 8030), (3650, 5533), (4015, 5030)]