20470890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:168

約数の個数: 128

約数和(自身を含む): 58786560

約数和(自身を除く): 38315670

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 17, 22, 30, 33, 34, 41, 51, 55, 66, 82, 85, 89, 102, 110, 123, 165, 170, 178, 187, 205, 246, 255, 267, 330, 374, 410, 445, 451, 510, 534, 561, 615, 697, 890, 902, 935, 979, 1122, 1230, 1335, 1353, 1394, 1513, 1870, 1958, 2091, 2255, 2670, 2706, 2805, 2937, 3026, 3485, 3649, 4182, 4510, 4539, 4895, 5610, 5874, 6765, 6970, 7298, 7565, 7667, 9078, 9790, 10455, 10947, 13530, 14685, 15130, 15334, 16643, 18245, 20910, 21894, 22695, 23001, 29370, 33286, 36490, 38335, 40139, 45390, 46002, 49929, 54735, 62033, 76670, 80278, 83215, 99858, 109470, 115005, 120417, 124066, 166430, 186099, 200695, 230010, 240834, 249645, 310165, 372198, 401390, 499290, 602085, 620330, 682363, 930495, 1204170, 1364726, 1860990, 2047089, 3411815, 4094178, 6823630, 10235445, 20470890]

約数ペア:

[(1, 20470890), (2, 10235445), (3, 6823630), (5, 4094178), (6, 3411815), (10, 2047089), (11, 1860990), (15, 1364726), (17, 1204170), (22, 930495), (30, 682363), (33, 620330), (34, 602085), (41, 499290), (51, 401390), (55, 372198), (66, 310165), (82, 249645), (85, 240834), (89, 230010), (102, 200695), (110, 186099), (123, 166430), (165, 124066), (170, 120417), (178, 115005), (187, 109470), (205, 99858), (246, 83215), (255, 80278), (267, 76670), (330, 62033), (374, 54735), (410, 49929), (445, 46002), (451, 45390), (510, 40139), (534, 38335), (561, 36490), (615, 33286), (697, 29370), (890, 23001), (902, 22695), (935, 21894), (979, 20910), (1122, 18245), (1230, 16643), (1335, 15334), (1353, 15130), (1394, 14685), (1513, 13530), (1870, 10947), (1958, 10455), (2091, 9790), (2255, 9078), (2670, 7667), (2706, 7565), (2805, 7298), (2937, 6970), (3026, 6765), (3485, 5874), (3649, 5610), (4182, 4895), (4510, 4539)]