20177190

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:342

約数の個数: 96

約数和(自身を含む): 58125600

約数和(自身を除く): 37948410

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 89, 90, 99, 110, 165, 178, 198, 229, 267, 330, 445, 458, 495, 534, 687, 801, 890, 979, 990, 1145, 1335, 1374, 1602, 1958, 2061, 2290, 2519, 2670, 2937, 3435, 4005, 4122, 4895, 5038, 5874, 6870, 7557, 8010, 8811, 9790, 10305, 12595, 14685, 15114, 17622, 20381, 20610, 22671, 25190, 29370, 37785, 40762, 44055, 45342, 61143, 75570, 88110, 101905, 113355, 122286, 183429, 203810, 224191, 226710, 305715, 366858, 448382, 611430, 672573, 917145, 1120955, 1345146, 1834290, 2017719, 2241910, 3362865, 4035438, 6725730, 10088595, 20177190]

約数ペア:

[(1, 20177190), (2, 10088595), (3, 6725730), (5, 4035438), (6, 3362865), (9, 2241910), (10, 2017719), (11, 1834290), (15, 1345146), (18, 1120955), (22, 917145), (30, 672573), (33, 611430), (45, 448382), (55, 366858), (66, 305715), (89, 226710), (90, 224191), (99, 203810), (110, 183429), (165, 122286), (178, 113355), (198, 101905), (229, 88110), (267, 75570), (330, 61143), (445, 45342), (458, 44055), (495, 40762), (534, 37785), (687, 29370), (801, 25190), (890, 22671), (979, 20610), (990, 20381), (1145, 17622), (1335, 15114), (1374, 14685), (1602, 12595), (1958, 10305), (2061, 9790), (2290, 8811), (2519, 8010), (2670, 7557), (2937, 6870), (3435, 5874), (4005, 5038), (4122, 4895)]