28661640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:399

約数の個数: 128

約数和(自身を含む): 99360000

約数和(自身を除く): 70698360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 149, 168, 210, 229, 280, 298, 420, 447, 458, 596, 687, 745, 840, 894, 916, 1043, 1145, 1192, 1374, 1490, 1603, 1788, 1832, 2086, 2235, 2290, 2748, 2980, 3129, 3206, 3435, 3576, 4172, 4470, 4580, 4809, 5215, 5496, 5960, 6258, 6412, 6870, 8015, 8344, 8940, 9160, 9618, 10430, 12516, 12824, 13740, 15645, 16030, 17880, 19236, 20860, 24045, 25032, 27480, 31290, 32060, 34121, 38472, 41720, 48090, 62580, 64120, 68242, 96180, 102363, 125160, 136484, 170605, 192360, 204726, 238847, 272968, 341210, 409452, 477694, 511815, 682420, 716541, 818904, 955388, 1023630, 1194235, 1364840, 1433082, 1910776, 2047260, 2388470, 2866164, 3582705, 4094520, 4776940, 5732328, 7165410, 9553880, 14330820, 28661640]

約数ペア:

[(1, 28661640), (2, 14330820), (3, 9553880), (4, 7165410), (5, 5732328), (6, 4776940), (7, 4094520), (8, 3582705), (10, 2866164), (12, 2388470), (14, 2047260), (15, 1910776), (20, 1433082), (21, 1364840), (24, 1194235), (28, 1023630), (30, 955388), (35, 818904), (40, 716541), (42, 682420), (56, 511815), (60, 477694), (70, 409452), (84, 341210), (105, 272968), (120, 238847), (140, 204726), (149, 192360), (168, 170605), (210, 136484), (229, 125160), (280, 102363), (298, 96180), (420, 68242), (447, 64120), (458, 62580), (596, 48090), (687, 41720), (745, 38472), (840, 34121), (894, 32060), (916, 31290), (1043, 27480), (1145, 25032), (1192, 24045), (1374, 20860), (1490, 19236), (1603, 17880), (1788, 16030), (1832, 15645), (2086, 13740), (2235, 12824), (2290, 12516), (2748, 10430), (2980, 9618), (3129, 9160), (3206, 8940), (3435, 8344), (3576, 8015), (4172, 6870), (4470, 6412), (4580, 6258), (4809, 5960), (5215, 5496)]