17878140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{2027}}^1$

素因数の和:2056

約数の個数: 108

約数和(自身を含む): 63115416

約数和(自身を除く): 45237276

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2027, 2205, 2940, 4054, 4410, 6081, 8108, 8820, 10135, 12162, 14189, 18243, 20270, 24324, 28378, 30405, 36486, 40540, 42567, 56756, 60810, 70945, 72972, 85134, 91215, 99323, 121620, 127701, 141890, 170268, 182430, 198646, 212835, 255402, 283780, 297969, 364860, 397292, 425670, 496615, 510804, 595938, 638505, 851340, 893907, 993230, 1191876, 1277010, 1489845, 1787814, 1986460, 2554020, 2979690, 3575628, 4469535, 5959380, 8939070, 17878140]

約数ペア:

[(1, 17878140), (2, 8939070), (3, 5959380), (4, 4469535), (5, 3575628), (6, 2979690), (7, 2554020), (9, 1986460), (10, 1787814), (12, 1489845), (14, 1277010), (15, 1191876), (18, 993230), (20, 893907), (21, 851340), (28, 638505), (30, 595938), (35, 510804), (36, 496615), (42, 425670), (45, 397292), (49, 364860), (60, 297969), (63, 283780), (70, 255402), (84, 212835), (90, 198646), (98, 182430), (105, 170268), (126, 141890), (140, 127701), (147, 121620), (180, 99323), (196, 91215), (210, 85134), (245, 72972), (252, 70945), (294, 60810), (315, 56756), (420, 42567), (441, 40540), (490, 36486), (588, 30405), (630, 28378), (735, 24324), (882, 20270), (980, 18243), (1260, 14189), (1470, 12162), (1764, 10135), (2027, 8820), (2205, 8108), (2940, 6081), (4054, 4410)]