18851280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^3\times {\mathrm{229}}^1$

素因数の和:266

約数の個数: 160

約数和(自身を含む): 68448000

約数和(自身を除く): 49596720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 229, 240, 245, 280, 294, 336, 343, 392, 420, 458, 490, 560, 588, 686, 687, 735, 784, 840, 916, 980, 1029, 1145, 1176, 1372, 1374, 1470, 1603, 1680, 1715, 1832, 1960, 2058, 2290, 2352, 2744, 2748, 2940, 3206, 3430, 3435, 3664, 3920, 4116, 4580, 4809, 5145, 5488, 5496, 5880, 6412, 6860, 6870, 8015, 8232, 9160, 9618, 10290, 10992, 11221, 11760, 12824, 13720, 13740, 16030, 16464, 18320, 19236, 20580, 22442, 24045, 25648, 27440, 27480, 32060, 33663, 38472, 41160, 44884, 48090, 54960, 56105, 64120, 67326, 76944, 78547, 82320, 89768, 96180, 112210, 128240, 134652, 157094, 168315, 179536, 192360, 224420, 235641, 269304, 314188, 336630, 384720, 392735, 448840, 471282, 538608, 628376, 673260, 785470, 897680, 942564, 1178205, 1256752, 1346520, 1570940, 1885128, 2356410, 2693040, 3141880, 3770256, 4712820, 6283760, 9425640, 18851280]

約数ペア:

[(1, 18851280), (2, 9425640), (3, 6283760), (4, 4712820), (5, 3770256), (6, 3141880), (7, 2693040), (8, 2356410), (10, 1885128), (12, 1570940), (14, 1346520), (15, 1256752), (16, 1178205), (20, 942564), (21, 897680), (24, 785470), (28, 673260), (30, 628376), (35, 538608), (40, 471282), (42, 448840), (48, 392735), (49, 384720), (56, 336630), (60, 314188), (70, 269304), (80, 235641), (84, 224420), (98, 192360), (105, 179536), (112, 168315), (120, 157094), (140, 134652), (147, 128240), (168, 112210), (196, 96180), (210, 89768), (229, 82320), (240, 78547), (245, 76944), (280, 67326), (294, 64120), (336, 56105), (343, 54960), (392, 48090), (420, 44884), (458, 41160), (490, 38472), (560, 33663), (588, 32060), (686, 27480), (687, 27440), (735, 25648), (784, 24045), (840, 22442), (916, 20580), (980, 19236), (1029, 18320), (1145, 16464), (1176, 16030), (1372, 13740), (1374, 13720), (1470, 12824), (1603, 11760), (1680, 11221), (1715, 10992), (1832, 10290), (1960, 9618), (2058, 9160), (2290, 8232), (2352, 8015), (2744, 6870), (2748, 6860), (2940, 6412), (3206, 5880), (3430, 5496), (3435, 5488), (3664, 5145), (3920, 4809), (4116, 4580)]