73771875

素因数分解:

$3^2\times 5^5\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 138522384

約数和(自身を除く): 64750509

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 61, 75, 125, 129, 183, 215, 225, 305, 375, 387, 549, 625, 645, 915, 1075, 1125, 1525, 1875, 1935, 2623, 2745, 3125, 3225, 4575, 5375, 5625, 7625, 7869, 9375, 9675, 13115, 13725, 16125, 22875, 23607, 26875, 28125, 38125, 39345, 48375, 65575, 68625, 80625, 114375, 118035, 134375, 190625, 196725, 241875, 327875, 343125, 403125, 571875, 590175, 983625, 1209375, 1639375, 1715625, 2950875, 4918125, 8196875, 14754375, 24590625, 73771875]

約数ペア:

[(1, 73771875), (3, 24590625), (5, 14754375), (9, 8196875), (15, 4918125), (25, 2950875), (43, 1715625), (45, 1639375), (61, 1209375), (75, 983625), (125, 590175), (129, 571875), (183, 403125), (215, 343125), (225, 327875), (305, 241875), (375, 196725), (387, 190625), (549, 134375), (625, 118035), (645, 114375), (915, 80625), (1075, 68625), (1125, 65575), (1525, 48375), (1875, 39345), (1935, 38125), (2623, 28125), (2745, 26875), (3125, 23607), (3225, 22875), (4575, 16125), (5375, 13725), (5625, 13115), (7625, 9675), (7869, 9375)]