28916640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{467}}^1$

素因数の和:531

約数の個数: 144

約数和(自身を含む): 101189088

約数和(自身を除く): 72272448

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 96, 120, 129, 144, 160, 172, 180, 215, 240, 258, 288, 344, 360, 387, 430, 467, 480, 516, 645, 688, 720, 774, 860, 934, 1032, 1290, 1376, 1401, 1440, 1548, 1720, 1868, 1935, 2064, 2335, 2580, 2802, 3096, 3440, 3736, 3870, 4128, 4203, 4670, 5160, 5604, 6192, 6880, 7005, 7472, 7740, 8406, 9340, 10320, 11208, 12384, 14010, 14944, 15480, 16812, 18680, 20081, 20640, 21015, 22416, 28020, 30960, 33624, 37360, 40162, 42030, 44832, 56040, 60243, 61920, 67248, 74720, 80324, 84060, 100405, 112080, 120486, 134496, 160648, 168120, 180729, 200810, 224160, 240972, 301215, 321296, 336240, 361458, 401620, 481944, 602430, 642592, 672480, 722916, 803240, 903645, 963888, 1204860, 1445832, 1606480, 1807290, 1927776, 2409720, 2891664, 3212960, 3614580, 4819440, 5783328, 7229160, 9638880, 14458320, 28916640]

約数ペア:

[(1, 28916640), (2, 14458320), (3, 9638880), (4, 7229160), (5, 5783328), (6, 4819440), (8, 3614580), (9, 3212960), (10, 2891664), (12, 2409720), (15, 1927776), (16, 1807290), (18, 1606480), (20, 1445832), (24, 1204860), (30, 963888), (32, 903645), (36, 803240), (40, 722916), (43, 672480), (45, 642592), (48, 602430), (60, 481944), (72, 401620), (80, 361458), (86, 336240), (90, 321296), (96, 301215), (120, 240972), (129, 224160), (144, 200810), (160, 180729), (172, 168120), (180, 160648), (215, 134496), (240, 120486), (258, 112080), (288, 100405), (344, 84060), (360, 80324), (387, 74720), (430, 67248), (467, 61920), (480, 60243), (516, 56040), (645, 44832), (688, 42030), (720, 40162), (774, 37360), (860, 33624), (934, 30960), (1032, 28020), (1290, 22416), (1376, 21015), (1401, 20640), (1440, 20081), (1548, 18680), (1720, 16812), (1868, 15480), (1935, 14944), (2064, 14010), (2335, 12384), (2580, 11208), (2802, 10320), (3096, 9340), (3440, 8406), (3736, 7740), (3870, 7472), (4128, 7005), (4203, 6880), (4670, 6192), (5160, 5604)]