28762020

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{1087}}^1$

素因数の和:1119

約数の個数: 144

約数和(自身を含む): 104186880

約数和(自身を除く): 75424860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 882, 945, 980, 1087, 1260, 1323, 1470, 1764, 1890, 2174, 2205, 2646, 2940, 3261, 3780, 4348, 4410, 5292, 5435, 6522, 6615, 7609, 8820, 9783, 10870, 13044, 13230, 15218, 16305, 19566, 21740, 22827, 26460, 29349, 30436, 32610, 38045, 39132, 45654, 48915, 53263, 58698, 65220, 68481, 76090, 91308, 97830, 106526, 114135, 117396, 136962, 146745, 152180, 159789, 195660, 205443, 213052, 228270, 266315, 273924, 293490, 319578, 342405, 410886, 456540, 479367, 532630, 586980, 639156, 684810, 798945, 821772, 958734, 1027215, 1065260, 1369620, 1438101, 1597890, 1917468, 2054430, 2396835, 2876202, 3195780, 4108860, 4793670, 5752404, 7190505, 9587340, 14381010, 28762020]

約数ペア:

[(1, 28762020), (2, 14381010), (3, 9587340), (4, 7190505), (5, 5752404), (6, 4793670), (7, 4108860), (9, 3195780), (10, 2876202), (12, 2396835), (14, 2054430), (15, 1917468), (18, 1597890), (20, 1438101), (21, 1369620), (27, 1065260), (28, 1027215), (30, 958734), (35, 821772), (36, 798945), (42, 684810), (45, 639156), (49, 586980), (54, 532630), (60, 479367), (63, 456540), (70, 410886), (84, 342405), (90, 319578), (98, 293490), (105, 273924), (108, 266315), (126, 228270), (135, 213052), (140, 205443), (147, 195660), (180, 159789), (189, 152180), (196, 146745), (210, 136962), (245, 117396), (252, 114135), (270, 106526), (294, 97830), (315, 91308), (378, 76090), (420, 68481), (441, 65220), (490, 58698), (540, 53263), (588, 48915), (630, 45654), (735, 39132), (756, 38045), (882, 32610), (945, 30436), (980, 29349), (1087, 26460), (1260, 22827), (1323, 21740), (1470, 19566), (1764, 16305), (1890, 15218), (2174, 13230), (2205, 13044), (2646, 10870), (2940, 9783), (3261, 8820), (3780, 7609), (4348, 6615), (4410, 6522), (5292, 5435)]