21306297400

素因数分解:

$2^3\times 5^2\times {\mathrm{89}}^1\times {\mathrm{229}}^1\times {\mathrm{5227}}^1$

素因数の和:5561

約数の個数: 96

約数和(自身を含む): 50322114000

約数和(自身を除く): 29015816600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 89, 100, 178, 200, 229, 356, 445, 458, 712, 890, 916, 1145, 1780, 1832, 2225, 2290, 3560, 4450, 4580, 5227, 5725, 8900, 9160, 10454, 11450, 17800, 20381, 20908, 22900, 26135, 40762, 41816, 45800, 52270, 81524, 101905, 104540, 130675, 163048, 203810, 209080, 261350, 407620, 465203, 509525, 522700, 815240, 930406, 1019050, 1045400, 1196983, 1860812, 2038100, 2326015, 2393966, 3721624, 4076200, 4652030, 4787932, 5984915, 9304060, 9575864, 11630075, 11969830, 18608120, 23260150, 23939660, 29924575, 46520300, 47879320, 59849150, 93040600, 106531487, 119698300, 213062974, 239396600, 426125948, 532657435, 852251896, 1065314870, 2130629740, 2663287175, 4261259480, 5326574350, 10653148700, 21306297400]

約数ペア:

[(1, 21306297400), (2, 10653148700), (4, 5326574350), (5, 4261259480), (8, 2663287175), (10, 2130629740), (20, 1065314870), (25, 852251896), (40, 532657435), (50, 426125948), (89, 239396600), (100, 213062974), (178, 119698300), (200, 106531487), (229, 93040600), (356, 59849150), (445, 47879320), (458, 46520300), (712, 29924575), (890, 23939660), (916, 23260150), (1145, 18608120), (1780, 11969830), (1832, 11630075), (2225, 9575864), (2290, 9304060), (3560, 5984915), (4450, 4787932), (4580, 4652030), (5227, 4076200), (5725, 3721624), (8900, 2393966), (9160, 2326015), (10454, 2038100), (11450, 1860812), (17800, 1196983), (20381, 1045400), (20908, 1019050), (22900, 930406), (26135, 815240), (40762, 522700), (41816, 509525), (45800, 465203), (52270, 407620), (81524, 261350), (101905, 209080), (104540, 203810), (130675, 163048)]