18758040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:321

約数の個数: 128

約数和(自身を含む): 65180160

約数和(自身を除く): 46422120

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, 137, 140, 163, 168, 210, 274, 280, 326, 411, 420, 489, 548, 652, 685, 815, 822, 840, 959, 978, 1096, 1141, 1304, 1370, 1630, 1644, 1918, 1956, 2055, 2282, 2445, 2740, 2877, 3260, 3288, 3423, 3836, 3912, 4110, 4564, 4795, 4890, 5480, 5705, 5754, 6520, 6846, 7672, 8220, 9128, 9590, 9780, 11410, 11508, 13692, 14385, 16440, 17115, 19180, 19560, 22331, 22820, 23016, 27384, 28770, 34230, 38360, 44662, 45640, 57540, 66993, 68460, 89324, 111655, 115080, 133986, 136920, 156317, 178648, 223310, 267972, 312634, 334965, 446620, 468951, 535944, 625268, 669930, 781585, 893240, 937902, 1250536, 1339860, 1563170, 1875804, 2344755, 2679720, 3126340, 3751608, 4689510, 6252680, 9379020, 18758040]

約数ペア:

[(1, 18758040), (2, 9379020), (3, 6252680), (4, 4689510), (5, 3751608), (6, 3126340), (7, 2679720), (8, 2344755), (10, 1875804), (12, 1563170), (14, 1339860), (15, 1250536), (20, 937902), (21, 893240), (24, 781585), (28, 669930), (30, 625268), (35, 535944), (40, 468951), (42, 446620), (56, 334965), (60, 312634), (70, 267972), (84, 223310), (105, 178648), (120, 156317), (137, 136920), (140, 133986), (163, 115080), (168, 111655), (210, 89324), (274, 68460), (280, 66993), (326, 57540), (411, 45640), (420, 44662), (489, 38360), (548, 34230), (652, 28770), (685, 27384), (815, 23016), (822, 22820), (840, 22331), (959, 19560), (978, 19180), (1096, 17115), (1141, 16440), (1304, 14385), (1370, 13692), (1630, 11508), (1644, 11410), (1918, 9780), (1956, 9590), (2055, 9128), (2282, 8220), (2445, 7672), (2740, 6846), (2877, 6520), (3260, 5754), (3288, 5705), (3423, 5480), (3836, 4890), (3912, 4795), (4110, 4564)]