81301140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^2$

素因数の和:358

約数の個数: 108

約数和(自身を含む): 262731924

約数和(自身を除く): 181430784

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 163, 170, 180, 204, 255, 306, 326, 340, 489, 510, 612, 652, 765, 815, 978, 1020, 1467, 1530, 1630, 1956, 2445, 2771, 2934, 3060, 3260, 4890, 5542, 5868, 7335, 8313, 9780, 11084, 13855, 14670, 16626, 24939, 26569, 27710, 29340, 33252, 41565, 49878, 53138, 55420, 79707, 83130, 99756, 106276, 124695, 132845, 159414, 166260, 239121, 249390, 265690, 318828, 398535, 451673, 478242, 498780, 531380, 797070, 903346, 956484, 1195605, 1355019, 1594140, 1806692, 2258365, 2391210, 2710038, 4065057, 4516730, 4782420, 5420076, 6775095, 8130114, 9033460, 13550190, 16260228, 20325285, 27100380, 40650570, 81301140]

約数ペア:

[(1, 81301140), (2, 40650570), (3, 27100380), (4, 20325285), (5, 16260228), (6, 13550190), (9, 9033460), (10, 8130114), (12, 6775095), (15, 5420076), (17, 4782420), (18, 4516730), (20, 4065057), (30, 2710038), (34, 2391210), (36, 2258365), (45, 1806692), (51, 1594140), (60, 1355019), (68, 1195605), (85, 956484), (90, 903346), (102, 797070), (153, 531380), (163, 498780), (170, 478242), (180, 451673), (204, 398535), (255, 318828), (306, 265690), (326, 249390), (340, 239121), (489, 166260), (510, 159414), (612, 132845), (652, 124695), (765, 106276), (815, 99756), (978, 83130), (1020, 79707), (1467, 55420), (1530, 53138), (1630, 49878), (1956, 41565), (2445, 33252), (2771, 29340), (2934, 27710), (3060, 26569), (3260, 24939), (4890, 16626), (5542, 14670), (5868, 13855), (7335, 11084), (8313, 9780)]