81949920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{571}}^1$

素因数の和:625

約数の個数: 192

約数和(自身を含む): 290594304

約数和(自身を除く): 208644384

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 23, 24, 26, 30, 32, 39, 40, 46, 48, 52, 60, 65, 69, 78, 80, 92, 96, 104, 115, 120, 130, 138, 156, 160, 184, 195, 208, 230, 240, 260, 276, 299, 312, 345, 368, 390, 416, 460, 480, 520, 552, 571, 598, 624, 690, 736, 780, 897, 920, 1040, 1104, 1142, 1196, 1248, 1380, 1495, 1560, 1713, 1794, 1840, 2080, 2208, 2284, 2392, 2760, 2855, 2990, 3120, 3426, 3588, 3680, 4485, 4568, 4784, 5520, 5710, 5980, 6240, 6852, 7176, 7423, 8565, 8970, 9136, 9568, 11040, 11420, 11960, 13133, 13704, 14352, 14846, 17130, 17940, 18272, 22269, 22840, 23920, 26266, 27408, 28704, 29692, 34260, 35880, 37115, 39399, 44538, 45680, 47840, 52532, 54816, 59384, 65665, 68520, 71760, 74230, 78798, 89076, 91360, 105064, 111345, 118768, 131330, 137040, 143520, 148460, 157596, 170729, 178152, 196995, 210128, 222690, 237536, 262660, 274080, 296920, 315192, 341458, 356304, 393990, 420256, 445380, 512187, 525320, 593840, 630384, 682916, 712608, 787980, 853645, 890760, 1024374, 1050640, 1187680, 1260768, 1365832, 1575960, 1707290, 1781520, 2048748, 2101280, 2560935, 2731664, 3151920, 3414580, 3563040, 4097496, 5121870, 5463328, 6303840, 6829160, 8194992, 10243740, 13658320, 16389984, 20487480, 27316640, 40974960, 81949920]

約数ペア:

[(1, 81949920), (2, 40974960), (3, 27316640), (4, 20487480), (5, 16389984), (6, 13658320), (8, 10243740), (10, 8194992), (12, 6829160), (13, 6303840), (15, 5463328), (16, 5121870), (20, 4097496), (23, 3563040), (24, 3414580), (26, 3151920), (30, 2731664), (32, 2560935), (39, 2101280), (40, 2048748), (46, 1781520), (48, 1707290), (52, 1575960), (60, 1365832), (65, 1260768), (69, 1187680), (78, 1050640), (80, 1024374), (92, 890760), (96, 853645), (104, 787980), (115, 712608), (120, 682916), (130, 630384), (138, 593840), (156, 525320), (160, 512187), (184, 445380), (195, 420256), (208, 393990), (230, 356304), (240, 341458), (260, 315192), (276, 296920), (299, 274080), (312, 262660), (345, 237536), (368, 222690), (390, 210128), (416, 196995), (460, 178152), (480, 170729), (520, 157596), (552, 148460), (571, 143520), (598, 137040), (624, 131330), (690, 118768), (736, 111345), (780, 105064), (897, 91360), (920, 89076), (1040, 78798), (1104, 74230), (1142, 71760), (1196, 68520), (1248, 65665), (1380, 59384), (1495, 54816), (1560, 52532), (1713, 47840), (1794, 45680), (1840, 44538), (2080, 39399), (2208, 37115), (2284, 35880), (2392, 34260), (2760, 29692), (2855, 28704), (2990, 27408), (3120, 26266), (3426, 23920), (3588, 22840), (3680, 22269), (4485, 18272), (4568, 17940), (4784, 17130), (5520, 14846), (5710, 14352), (5980, 13704), (6240, 13133), (6852, 11960), (7176, 11420), (7423, 11040), (8565, 9568), (8970, 9136)]