21447071480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{257}}^1\times {\mathrm{7219}}^1$

素因数の和:7521

約数の個数: 96

約数和(自身を含む): 51468058800

約数和(自身を除く): 30020987320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 257, 289, 340, 514, 578, 680, 1028, 1156, 1285, 1445, 2056, 2312, 2570, 2890, 4369, 5140, 5780, 7219, 8738, 10280, 11560, 14438, 17476, 21845, 28876, 34952, 36095, 43690, 57752, 72190, 74273, 87380, 122723, 144380, 148546, 174760, 245446, 288760, 297092, 371365, 490892, 594184, 613615, 742730, 981784, 1227230, 1485460, 1855283, 2086291, 2454460, 2970920, 3710566, 4172582, 4908920, 7421132, 8345164, 9276415, 10431455, 14842264, 16690328, 18552830, 20862910, 31539811, 37105660, 41725820, 63079622, 74211320, 83451640, 126159244, 157699055, 252318488, 315398110, 536176787, 630796220, 1072353574, 1261592440, 2144707148, 2680883935, 4289414296, 5361767870, 10723535740, 21447071480]

約数ペア:

[(1, 21447071480), (2, 10723535740), (4, 5361767870), (5, 4289414296), (8, 2680883935), (10, 2144707148), (17, 1261592440), (20, 1072353574), (34, 630796220), (40, 536176787), (68, 315398110), (85, 252318488), (136, 157699055), (170, 126159244), (257, 83451640), (289, 74211320), (340, 63079622), (514, 41725820), (578, 37105660), (680, 31539811), (1028, 20862910), (1156, 18552830), (1285, 16690328), (1445, 14842264), (2056, 10431455), (2312, 9276415), (2570, 8345164), (2890, 7421132), (4369, 4908920), (5140, 4172582), (5780, 3710566), (7219, 2970920), (8738, 2454460), (10280, 2086291), (11560, 1855283), (14438, 1485460), (17476, 1227230), (21845, 981784), (28876, 742730), (34952, 613615), (36095, 594184), (43690, 490892), (57752, 371365), (72190, 297092), (74273, 288760), (87380, 245446), (122723, 174760), (144380, 148546)]