1998877440

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{74363}}^1$

素因数の和:74394

約数の個数: 144

約数和(自身を含む): 7296000768

約数和(自身を除く): 5297123328

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 3360, 3840, 4480, 5376, 6720, 8960, 13440, 26880, 74363, 148726, 223089, 297452, 371815, 446178, 520541, 594904, 743630, 892356, 1041082, 1115445, 1189808, 1487260, 1561623, 1784712, 2082164, 2230890, 2379616, 2602705, 2974520, 3123246, 3569424, 4164328, 4461780, 4759232, 5205410, 5949040, 6246492, 7138848, 7808115, 8328656, 8923560, 9518464, 10410820, 11898080, 12492984, 14277696, 15616230, 16657312, 17847120, 19036928, 20821640, 23796160, 24985968, 28555392, 31232460, 33314624, 35694240, 41643280, 47592320, 49971936, 57110784, 62464920, 66629248, 71388480, 83286560, 95184640, 99943872, 124929840, 133258496, 142776960, 166573120, 199887744, 249859680, 285553920, 333146240, 399775488, 499719360, 666292480, 999438720, 1998877440]

約数ペア:

[(1, 1998877440), (2, 999438720), (3, 666292480), (4, 499719360), (5, 399775488), (6, 333146240), (7, 285553920), (8, 249859680), (10, 199887744), (12, 166573120), (14, 142776960), (15, 133258496), (16, 124929840), (20, 99943872), (21, 95184640), (24, 83286560), (28, 71388480), (30, 66629248), (32, 62464920), (35, 57110784), (40, 49971936), (42, 47592320), (48, 41643280), (56, 35694240), (60, 33314624), (64, 31232460), (70, 28555392), (80, 24985968), (84, 23796160), (96, 20821640), (105, 19036928), (112, 17847120), (120, 16657312), (128, 15616230), (140, 14277696), (160, 12492984), (168, 11898080), (192, 10410820), (210, 9518464), (224, 8923560), (240, 8328656), (256, 7808115), (280, 7138848), (320, 6246492), (336, 5949040), (384, 5205410), (420, 4759232), (448, 4461780), (480, 4164328), (560, 3569424), (640, 3123246), (672, 2974520), (768, 2602705), (840, 2379616), (896, 2230890), (960, 2082164), (1120, 1784712), (1280, 1561623), (1344, 1487260), (1680, 1189808), (1792, 1115445), (1920, 1041082), (2240, 892356), (2688, 743630), (3360, 594904), (3840, 520541), (4480, 446178), (5376, 371815), (6720, 297452), (8960, 223089), (13440, 148726), (26880, 74363)]