20178018180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{331}}^1\times {\mathrm{1259}}^1$

素因数の和:1874

約数の個数: 144

約数和(自身を含む): 61668734400

約数和(自身を除く): 41490716220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 269, 331, 538, 662, 807, 993, 1076, 1259, 1324, 1345, 1614, 1655, 1986, 2421, 2518, 2690, 2979, 3228, 3310, 3777, 3972, 4035, 4842, 4965, 5036, 5380, 5958, 6295, 6620, 7554, 8070, 9684, 9930, 11331, 11916, 12105, 12590, 14895, 15108, 16140, 18885, 19860, 22662, 24210, 25180, 29790, 37770, 45324, 48420, 56655, 59580, 75540, 89039, 113310, 178078, 226620, 267117, 338671, 356156, 416729, 445195, 534234, 677342, 801351, 833458, 890390, 1016013, 1068468, 1250187, 1335585, 1354684, 1602702, 1666916, 1693355, 1780780, 2032026, 2083645, 2500374, 2671170, 3048039, 3205404, 3386710, 3750561, 4006755, 4064052, 4167290, 5000748, 5080065, 5342340, 6096078, 6250935, 6773420, 7501122, 8013510, 8334580, 10160130, 12192156, 12501870, 15002244, 15240195, 16027020, 18752805, 20320260, 25003740, 30480390, 37505610, 60960780, 75011220, 112100101, 224200202, 336300303, 448400404, 560500505, 672600606, 1008900909, 1121001010, 1345201212, 1681501515, 2017801818, 2242002020, 3363003030, 4035603636, 5044504545, 6726006060, 10089009090, 20178018180]

約数ペア:

[(1, 20178018180), (2, 10089009090), (3, 6726006060), (4, 5044504545), (5, 4035603636), (6, 3363003030), (9, 2242002020), (10, 2017801818), (12, 1681501515), (15, 1345201212), (18, 1121001010), (20, 1008900909), (30, 672600606), (36, 560500505), (45, 448400404), (60, 336300303), (90, 224200202), (180, 112100101), (269, 75011220), (331, 60960780), (538, 37505610), (662, 30480390), (807, 25003740), (993, 20320260), (1076, 18752805), (1259, 16027020), (1324, 15240195), (1345, 15002244), (1614, 12501870), (1655, 12192156), (1986, 10160130), (2421, 8334580), (2518, 8013510), (2690, 7501122), (2979, 6773420), (3228, 6250935), (3310, 6096078), (3777, 5342340), (3972, 5080065), (4035, 5000748), (4842, 4167290), (4965, 4064052), (5036, 4006755), (5380, 3750561), (5958, 3386710), (6295, 3205404), (6620, 3048039), (7554, 2671170), (8070, 2500374), (9684, 2083645), (9930, 2032026), (11331, 1780780), (11916, 1693355), (12105, 1666916), (12590, 1602702), (14895, 1354684), (15108, 1335585), (16140, 1250187), (18885, 1068468), (19860, 1016013), (22662, 890390), (24210, 833458), (25180, 801351), (29790, 677342), (37770, 534234), (45324, 445195), (48420, 416729), (56655, 356156), (59580, 338671), (75540, 267117), (89039, 226620), (113310, 178078)]