18916915120

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{443}}^1$

素因数の和:707

約数の個数: 160

約数和(自身を含む): 45784569600

約数和(自身を除く): 26867654480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 83, 109, 118, 166, 218, 236, 295, 332, 415, 436, 443, 472, 545, 590, 664, 830, 872, 886, 944, 1090, 1180, 1328, 1660, 1744, 1772, 2180, 2215, 2360, 3320, 3544, 4360, 4430, 4720, 4897, 6431, 6640, 7088, 8720, 8860, 9047, 9794, 12862, 17720, 18094, 19588, 24485, 25724, 26137, 32155, 35440, 36188, 36769, 39176, 45235, 48287, 48970, 51448, 52274, 64310, 72376, 73538, 78352, 90470, 96574, 97940, 102896, 104548, 128620, 130685, 144752, 147076, 180940, 183845, 193148, 195880, 209096, 241435, 257240, 261370, 294152, 361880, 367690, 386296, 391760, 418192, 482870, 514480, 522740, 533773, 588304, 723760, 735380, 772592, 965740, 1045480, 1067546, 1470760, 1931480, 2090960, 2135092, 2169371, 2668865, 2848933, 2941520, 3862960, 4007821, 4270184, 4338742, 5337730, 5697866, 8015642, 8540368, 8677484, 10675460, 10846855, 11395732, 14244665, 16031284, 17354968, 20039105, 21350920, 21693710, 22791464, 28489330, 32062568, 34709936, 40078210, 42701840, 43387420, 45582928, 56978660, 64125136, 80156420, 86774840, 113957320, 160312840, 173549680, 227914640, 236461439, 320625680, 472922878, 945845756, 1182307195, 1891691512, 2364614390, 3783383024, 4729228780, 9458457560, 18916915120]

約数ペア:

[(1, 18916915120), (2, 9458457560), (4, 4729228780), (5, 3783383024), (8, 2364614390), (10, 1891691512), (16, 1182307195), (20, 945845756), (40, 472922878), (59, 320625680), (80, 236461439), (83, 227914640), (109, 173549680), (118, 160312840), (166, 113957320), (218, 86774840), (236, 80156420), (295, 64125136), (332, 56978660), (415, 45582928), (436, 43387420), (443, 42701840), (472, 40078210), (545, 34709936), (590, 32062568), (664, 28489330), (830, 22791464), (872, 21693710), (886, 21350920), (944, 20039105), (1090, 17354968), (1180, 16031284), (1328, 14244665), (1660, 11395732), (1744, 10846855), (1772, 10675460), (2180, 8677484), (2215, 8540368), (2360, 8015642), (3320, 5697866), (3544, 5337730), (4360, 4338742), (4430, 4270184), (4720, 4007821), (4897, 3862960), (6431, 2941520), (6640, 2848933), (7088, 2668865), (8720, 2169371), (8860, 2135092), (9047, 2090960), (9794, 1931480), (12862, 1470760), (17720, 1067546), (18094, 1045480), (19588, 965740), (24485, 772592), (25724, 735380), (26137, 723760), (32155, 588304), (35440, 533773), (36188, 522740), (36769, 514480), (39176, 482870), (45235, 418192), (48287, 391760), (48970, 386296), (51448, 367690), (52274, 361880), (64310, 294152), (72376, 261370), (73538, 257240), (78352, 241435), (90470, 209096), (96574, 195880), (97940, 193148), (102896, 183845), (104548, 180940), (128620, 147076), (130685, 144752)]