81448020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{619}}^1$

素因数の和:694

約数の個数: 144

約数和(自身を含む): 268107840

約数和(自身を除く): 186659820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 43, 45, 51, 60, 68, 85, 86, 90, 102, 129, 153, 170, 172, 180, 204, 215, 255, 258, 306, 340, 387, 430, 510, 516, 612, 619, 645, 731, 765, 774, 860, 1020, 1238, 1290, 1462, 1530, 1548, 1857, 1935, 2193, 2476, 2580, 2924, 3060, 3095, 3655, 3714, 3870, 4386, 5571, 6190, 6579, 7310, 7428, 7740, 8772, 9285, 10523, 10965, 11142, 12380, 13158, 14620, 18570, 21046, 21930, 22284, 26316, 26617, 27855, 31569, 32895, 37140, 42092, 43860, 52615, 53234, 55710, 63138, 65790, 79851, 94707, 105230, 106468, 111420, 126276, 131580, 133085, 157845, 159702, 189414, 210460, 239553, 266170, 315690, 319404, 378828, 399255, 452489, 473535, 479106, 532340, 631380, 798510, 904978, 947070, 958212, 1197765, 1357467, 1597020, 1809956, 1894140, 2262445, 2395530, 2714934, 4072401, 4524890, 4791060, 5429868, 6787335, 8144802, 9049780, 13574670, 16289604, 20362005, 27149340, 40724010, 81448020]

約数ペア:

[(1, 81448020), (2, 40724010), (3, 27149340), (4, 20362005), (5, 16289604), (6, 13574670), (9, 9049780), (10, 8144802), (12, 6787335), (15, 5429868), (17, 4791060), (18, 4524890), (20, 4072401), (30, 2714934), (34, 2395530), (36, 2262445), (43, 1894140), (45, 1809956), (51, 1597020), (60, 1357467), (68, 1197765), (85, 958212), (86, 947070), (90, 904978), (102, 798510), (129, 631380), (153, 532340), (170, 479106), (172, 473535), (180, 452489), (204, 399255), (215, 378828), (255, 319404), (258, 315690), (306, 266170), (340, 239553), (387, 210460), (430, 189414), (510, 159702), (516, 157845), (612, 133085), (619, 131580), (645, 126276), (731, 111420), (765, 106468), (774, 105230), (860, 94707), (1020, 79851), (1238, 65790), (1290, 63138), (1462, 55710), (1530, 53234), (1548, 52615), (1857, 43860), (1935, 42092), (2193, 37140), (2476, 32895), (2580, 31569), (2924, 27855), (3060, 26617), (3095, 26316), (3655, 22284), (3714, 21930), (3870, 21046), (4386, 18570), (5571, 14620), (6190, 13158), (6579, 12380), (7310, 11142), (7428, 10965), (7740, 10523), (8772, 9285)]