1298996875

素因数分解:

$5^5\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:143

約数の個数: 96

約数和(自身を含む): 1943875584

約数和(自身を除く): 644878709

約数列:

[1, 5, 11, 23, 25, 31, 53, 55, 115, 125, 155, 253, 265, 275, 341, 575, 583, 625, 713, 775, 1219, 1265, 1325, 1375, 1643, 1705, 2875, 2915, 3125, 3565, 3875, 6095, 6325, 6625, 6875, 7843, 8215, 8525, 13409, 14375, 14575, 17825, 18073, 19375, 30475, 31625, 33125, 34375, 37789, 39215, 41075, 42625, 67045, 71875, 72875, 89125, 90365, 96875, 152375, 158125, 165625, 188945, 196075, 205375, 213125, 335225, 364375, 415679, 445625, 451825, 761875, 790625, 944725, 980375, 1026875, 1065625, 1676125, 1821875, 2078395, 2228125, 2259125, 3809375, 4723625, 4901875, 5134375, 8380625, 10391975, 11295625, 23618125, 24509375, 41903125, 51959875, 56478125, 118090625, 259799375, 1298996875]

約数ペア:

[(1, 1298996875), (5, 259799375), (11, 118090625), (23, 56478125), (25, 51959875), (31, 41903125), (53, 24509375), (55, 23618125), (115, 11295625), (125, 10391975), (155, 8380625), (253, 5134375), (265, 4901875), (275, 4723625), (341, 3809375), (575, 2259125), (583, 2228125), (625, 2078395), (713, 1821875), (775, 1676125), (1219, 1065625), (1265, 1026875), (1325, 980375), (1375, 944725), (1643, 790625), (1705, 761875), (2875, 451825), (2915, 445625), (3125, 415679), (3565, 364375), (3875, 335225), (6095, 213125), (6325, 205375), (6625, 196075), (6875, 188945), (7843, 165625), (8215, 158125), (8525, 152375), (13409, 96875), (14375, 90365), (14575, 89125), (17825, 72875), (18073, 71875), (19375, 67045), (30475, 42625), (31625, 41075), (33125, 39215), (34375, 37789)]