9909535900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{101221}}^1$

素因数の和:101335

約数の個数: 72

約数和(自身を含む): 23722387920

約数和(自身を除く): 13812852020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 89, 100, 110, 178, 220, 275, 356, 445, 550, 890, 979, 1100, 1780, 1958, 2225, 3916, 4450, 4895, 8900, 9790, 19580, 24475, 48950, 97900, 101221, 202442, 404884, 506105, 1012210, 1113431, 2024420, 2226862, 2530525, 4453724, 5061050, 5567155, 9008669, 10122100, 11134310, 18017338, 22268620, 27835775, 36034676, 45043345, 55671550, 90086690, 99095359, 111343100, 180173380, 198190718, 225216725, 396381436, 450433450, 495476795, 900866900, 990953590, 1981907180, 2477383975, 4954767950, 9909535900]

約数ペア:

[(1, 9909535900), (2, 4954767950), (4, 2477383975), (5, 1981907180), (10, 990953590), (11, 900866900), (20, 495476795), (22, 450433450), (25, 396381436), (44, 225216725), (50, 198190718), (55, 180173380), (89, 111343100), (100, 99095359), (110, 90086690), (178, 55671550), (220, 45043345), (275, 36034676), (356, 27835775), (445, 22268620), (550, 18017338), (890, 11134310), (979, 10122100), (1100, 9008669), (1780, 5567155), (1958, 5061050), (2225, 4453724), (3916, 2530525), (4450, 2226862), (4895, 2024420), (8900, 1113431), (9790, 1012210), (19580, 506105), (24475, 404884), (48950, 202442), (97900, 101221)]