19151020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 48988800

約数和(自身を除く): 29837780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 53, 58, 70, 89, 106, 116, 140, 145, 178, 203, 212, 265, 290, 356, 371, 406, 445, 530, 580, 623, 742, 812, 890, 1015, 1060, 1246, 1484, 1537, 1780, 1855, 2030, 2492, 2581, 3074, 3115, 3710, 4060, 4717, 5162, 6148, 6230, 7420, 7685, 9434, 10324, 10759, 12460, 12905, 15370, 18067, 18868, 21518, 23585, 25810, 30740, 33019, 36134, 43036, 47170, 51620, 53795, 66038, 72268, 90335, 94340, 107590, 132076, 136793, 165095, 180670, 215180, 273586, 330190, 361340, 547172, 660380, 683965, 957551, 1367930, 1915102, 2735860, 3830204, 4787755, 9575510, 19151020]

約数ペア:

[(1, 19151020), (2, 9575510), (4, 4787755), (5, 3830204), (7, 2735860), (10, 1915102), (14, 1367930), (20, 957551), (28, 683965), (29, 660380), (35, 547172), (53, 361340), (58, 330190), (70, 273586), (89, 215180), (106, 180670), (116, 165095), (140, 136793), (145, 132076), (178, 107590), (203, 94340), (212, 90335), (265, 72268), (290, 66038), (356, 53795), (371, 51620), (406, 47170), (445, 43036), (530, 36134), (580, 33019), (623, 30740), (742, 25810), (812, 23585), (890, 21518), (1015, 18868), (1060, 18067), (1246, 15370), (1484, 12905), (1537, 12460), (1780, 10759), (1855, 10324), (2030, 9434), (2492, 7685), (2581, 7420), (3074, 6230), (3115, 6148), (3710, 5162), (4060, 4717)]