19388880

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{3847}}^1$

素因数の和:3873

約数の個数: 120

約数和(自身を含む): 74435712

約数和(自身を除く): 55046832

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 3847, 5040, 7694, 11541, 15388, 19235, 23082, 26929, 30776, 34623, 38470, 46164, 53858, 57705, 61552, 69246, 76940, 80787, 92328, 107716, 115410, 134645, 138492, 153880, 161574, 173115, 184656, 215432, 230820, 242361, 269290, 276984, 307760, 323148, 346230, 403935, 430864, 461640, 484722, 538580, 553968, 646296, 692460, 807870, 923280, 969444, 1077160, 1211805, 1292592, 1384920, 1615740, 1938888, 2154320, 2423610, 2769840, 3231480, 3877776, 4847220, 6462960, 9694440, 19388880]

約数ペア:

[(1, 19388880), (2, 9694440), (3, 6462960), (4, 4847220), (5, 3877776), (6, 3231480), (7, 2769840), (8, 2423610), (9, 2154320), (10, 1938888), (12, 1615740), (14, 1384920), (15, 1292592), (16, 1211805), (18, 1077160), (20, 969444), (21, 923280), (24, 807870), (28, 692460), (30, 646296), (35, 553968), (36, 538580), (40, 484722), (42, 461640), (45, 430864), (48, 403935), (56, 346230), (60, 323148), (63, 307760), (70, 276984), (72, 269290), (80, 242361), (84, 230820), (90, 215432), (105, 184656), (112, 173115), (120, 161574), (126, 153880), (140, 138492), (144, 134645), (168, 115410), (180, 107716), (210, 92328), (240, 80787), (252, 76940), (280, 69246), (315, 61552), (336, 57705), (360, 53858), (420, 46164), (504, 38470), (560, 34623), (630, 30776), (720, 26929), (840, 23082), (1008, 19235), (1260, 15388), (1680, 11541), (2520, 7694), (3847, 5040)]