31281250

素因数分解:

$2^1\times 5^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:63

約数の個数: 112

約数和(自身を含む): 78748992

約数和(自身を除く): 47467742

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 25, 26, 35, 50, 55, 65, 70, 77, 91, 110, 125, 130, 143, 154, 175, 182, 250, 275, 286, 325, 350, 385, 455, 550, 625, 650, 715, 770, 875, 910, 1001, 1250, 1375, 1430, 1625, 1750, 1925, 2002, 2275, 2750, 3125, 3250, 3575, 3850, 4375, 4550, 5005, 6250, 6875, 7150, 8125, 8750, 9625, 10010, 11375, 13750, 15625, 16250, 17875, 19250, 21875, 22750, 25025, 31250, 34375, 35750, 40625, 43750, 48125, 50050, 56875, 68750, 81250, 89375, 96250, 109375, 113750, 125125, 171875, 178750, 203125, 218750, 240625, 250250, 284375, 343750, 406250, 446875, 481250, 568750, 625625, 893750, 1203125, 1251250, 1421875, 2234375, 2406250, 2843750, 3128125, 4468750, 6256250, 15640625, 31281250]

約数ペア:

[(1, 31281250), (2, 15640625), (5, 6256250), (7, 4468750), (10, 3128125), (11, 2843750), (13, 2406250), (14, 2234375), (22, 1421875), (25, 1251250), (26, 1203125), (35, 893750), (50, 625625), (55, 568750), (65, 481250), (70, 446875), (77, 406250), (91, 343750), (110, 284375), (125, 250250), (130, 240625), (143, 218750), (154, 203125), (175, 178750), (182, 171875), (250, 125125), (275, 113750), (286, 109375), (325, 96250), (350, 89375), (385, 81250), (455, 68750), (550, 56875), (625, 50050), (650, 48125), (715, 43750), (770, 40625), (875, 35750), (910, 34375), (1001, 31250), (1250, 25025), (1375, 22750), (1430, 21875), (1625, 19250), (1750, 17875), (1925, 16250), (2002, 15625), (2275, 13750), (2750, 11375), (3125, 10010), (3250, 9625), (3575, 8750), (3850, 8125), (4375, 7150), (4550, 6875), (5005, 6250)]