19816440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{761}}^1$

素因数の和:813

約数の個数: 128

約数和(自身を含む): 70225920

約数和(自身を除く): 50409480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 761, 840, 868, 930, 1085, 1240, 1302, 1522, 1736, 1860, 2170, 2283, 2604, 3044, 3255, 3720, 3805, 4340, 4566, 5208, 5327, 6088, 6510, 7610, 8680, 9132, 10654, 11415, 13020, 15220, 15981, 18264, 21308, 22830, 23591, 26040, 26635, 30440, 31962, 42616, 45660, 47182, 53270, 63924, 70773, 79905, 91320, 94364, 106540, 117955, 127848, 141546, 159810, 165137, 188728, 213080, 235910, 283092, 319620, 330274, 353865, 471820, 495411, 566184, 639240, 660548, 707730, 825685, 943640, 990822, 1321096, 1415460, 1651370, 1981644, 2477055, 2830920, 3302740, 3963288, 4954110, 6605480, 9908220, 19816440]

約数ペア:

[(1, 19816440), (2, 9908220), (3, 6605480), (4, 4954110), (5, 3963288), (6, 3302740), (7, 2830920), (8, 2477055), (10, 1981644), (12, 1651370), (14, 1415460), (15, 1321096), (20, 990822), (21, 943640), (24, 825685), (28, 707730), (30, 660548), (31, 639240), (35, 566184), (40, 495411), (42, 471820), (56, 353865), (60, 330274), (62, 319620), (70, 283092), (84, 235910), (93, 213080), (105, 188728), (120, 165137), (124, 159810), (140, 141546), (155, 127848), (168, 117955), (186, 106540), (210, 94364), (217, 91320), (248, 79905), (280, 70773), (310, 63924), (372, 53270), (420, 47182), (434, 45660), (465, 42616), (620, 31962), (651, 30440), (744, 26635), (761, 26040), (840, 23591), (868, 22830), (930, 21308), (1085, 18264), (1240, 15981), (1302, 15220), (1522, 13020), (1736, 11415), (1860, 10654), (2170, 9132), (2283, 8680), (2604, 7610), (3044, 6510), (3255, 6088), (3720, 5327), (3805, 5208), (4340, 4566)]