18295425

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:151

約数の個数: 72

約数和(自身を含む): 35180288

約数和(自身を除く): 16884863

約数列:

[1, 3, 5, 9, 15, 25, 31, 43, 45, 61, 75, 93, 129, 155, 183, 215, 225, 279, 305, 387, 465, 549, 645, 775, 915, 1075, 1333, 1395, 1525, 1891, 1935, 2325, 2623, 2745, 3225, 3999, 4575, 5673, 6665, 6975, 7869, 9455, 9675, 11997, 13115, 13725, 17019, 19995, 23607, 28365, 33325, 39345, 47275, 59985, 65575, 81313, 85095, 99975, 118035, 141825, 196725, 243939, 299925, 406565, 425475, 590175, 731817, 1219695, 2032825, 3659085, 6098475, 18295425]

約数ペア:

[(1, 18295425), (3, 6098475), (5, 3659085), (9, 2032825), (15, 1219695), (25, 731817), (31, 590175), (43, 425475), (45, 406565), (61, 299925), (75, 243939), (93, 196725), (129, 141825), (155, 118035), (183, 99975), (215, 85095), (225, 81313), (279, 65575), (305, 59985), (387, 47275), (465, 39345), (549, 33325), (645, 28365), (775, 23607), (915, 19995), (1075, 17019), (1333, 13725), (1395, 13115), (1525, 11997), (1891, 9675), (1935, 9455), (2325, 7869), (2623, 6975), (2745, 6665), (3225, 5673), (3999, 4575)]