31402980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{24923}}^1$

素因数の和:24945

約数の個数: 72

約数和(自身を含む): 108868032

約数和(自身を除く): 77465052

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 24923, 49846, 74769, 99692, 124615, 149538, 174461, 224307, 249230, 299076, 348922, 373845, 448614, 498460, 523383, 697844, 747690, 872305, 897228, 1046766, 1121535, 1495380, 1570149, 1744610, 2093532, 2243070, 2616915, 3140298, 3489220, 4486140, 5233830, 6280596, 7850745, 10467660, 15701490, 31402980]

約数ペア:

[(1, 31402980), (2, 15701490), (3, 10467660), (4, 7850745), (5, 6280596), (6, 5233830), (7, 4486140), (9, 3489220), (10, 3140298), (12, 2616915), (14, 2243070), (15, 2093532), (18, 1744610), (20, 1570149), (21, 1495380), (28, 1121535), (30, 1046766), (35, 897228), (36, 872305), (42, 747690), (45, 697844), (60, 523383), (63, 498460), (70, 448614), (84, 373845), (90, 348922), (105, 299076), (126, 249230), (140, 224307), (180, 174461), (210, 149538), (252, 124615), (315, 99692), (420, 74769), (630, 49846), (1260, 24923)]