30981930

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 128

約数和(自身を含む): 90021888

約数和(自身を除く): 59039958

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 43, 47, 70, 73, 86, 94, 105, 129, 141, 146, 210, 215, 219, 235, 258, 282, 301, 329, 365, 430, 438, 470, 511, 602, 645, 658, 705, 730, 903, 987, 1022, 1095, 1290, 1410, 1505, 1533, 1645, 1806, 1974, 2021, 2190, 2555, 3010, 3066, 3139, 3290, 3431, 4042, 4515, 4935, 5110, 6063, 6278, 6862, 7665, 9030, 9417, 9870, 10105, 10293, 12126, 14147, 15330, 15695, 17155, 18834, 20210, 20586, 21973, 24017, 28294, 30315, 31390, 34310, 42441, 43946, 47085, 48034, 51465, 60630, 65919, 70735, 72051, 84882, 94170, 102930, 109865, 120085, 131838, 141470, 144102, 147533, 212205, 219730, 240170, 295066, 329595, 360255, 424410, 442599, 659190, 720510, 737665, 885198, 1032731, 1475330, 2065462, 2212995, 3098193, 4425990, 5163655, 6196386, 10327310, 15490965, 30981930]

約数ペア:

[(1, 30981930), (2, 15490965), (3, 10327310), (5, 6196386), (6, 5163655), (7, 4425990), (10, 3098193), (14, 2212995), (15, 2065462), (21, 1475330), (30, 1032731), (35, 885198), (42, 737665), (43, 720510), (47, 659190), (70, 442599), (73, 424410), (86, 360255), (94, 329595), (105, 295066), (129, 240170), (141, 219730), (146, 212205), (210, 147533), (215, 144102), (219, 141470), (235, 131838), (258, 120085), (282, 109865), (301, 102930), (329, 94170), (365, 84882), (430, 72051), (438, 70735), (470, 65919), (511, 60630), (602, 51465), (645, 48034), (658, 47085), (705, 43946), (730, 42441), (903, 34310), (987, 31390), (1022, 30315), (1095, 28294), (1290, 24017), (1410, 21973), (1505, 20586), (1533, 20210), (1645, 18834), (1806, 17155), (1974, 15695), (2021, 15330), (2190, 14147), (2555, 12126), (3010, 10293), (3066, 10105), (3139, 9870), (3290, 9417), (3431, 9030), (4042, 7665), (4515, 6862), (4935, 6278), (5110, 6063)]