30531720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:215

約数の個数: 128

約数和(自身を含む): 96243840

約数和(自身を除く): 65712120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 61, 86, 97, 120, 122, 129, 172, 183, 194, 215, 244, 258, 291, 305, 344, 366, 388, 430, 485, 488, 516, 582, 610, 645, 732, 776, 860, 915, 970, 1032, 1164, 1220, 1290, 1455, 1464, 1720, 1830, 1940, 2328, 2440, 2580, 2623, 2910, 3660, 3880, 4171, 5160, 5246, 5820, 5917, 7320, 7869, 8342, 10492, 11640, 11834, 12513, 13115, 15738, 16684, 17751, 20855, 20984, 23668, 25026, 26230, 29585, 31476, 33368, 35502, 39345, 41710, 47336, 50052, 52460, 59170, 62565, 62952, 71004, 78690, 83420, 88755, 100104, 104920, 118340, 125130, 142008, 157380, 166840, 177510, 236680, 250260, 254431, 314760, 355020, 500520, 508862, 710040, 763293, 1017724, 1272155, 1526586, 2035448, 2544310, 3053172, 3816465, 5088620, 6106344, 7632930, 10177240, 15265860, 30531720]

約数ペア:

[(1, 30531720), (2, 15265860), (3, 10177240), (4, 7632930), (5, 6106344), (6, 5088620), (8, 3816465), (10, 3053172), (12, 2544310), (15, 2035448), (20, 1526586), (24, 1272155), (30, 1017724), (40, 763293), (43, 710040), (60, 508862), (61, 500520), (86, 355020), (97, 314760), (120, 254431), (122, 250260), (129, 236680), (172, 177510), (183, 166840), (194, 157380), (215, 142008), (244, 125130), (258, 118340), (291, 104920), (305, 100104), (344, 88755), (366, 83420), (388, 78690), (430, 71004), (485, 62952), (488, 62565), (516, 59170), (582, 52460), (610, 50052), (645, 47336), (732, 41710), (776, 39345), (860, 35502), (915, 33368), (970, 31476), (1032, 29585), (1164, 26230), (1220, 25026), (1290, 23668), (1455, 20984), (1464, 20855), (1720, 17751), (1830, 16684), (1940, 15738), (2328, 13115), (2440, 12513), (2580, 11834), (2623, 11640), (2910, 10492), (3660, 8342), (3880, 7869), (4171, 7320), (5160, 5917), (5246, 5820)]