19217640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 63221760

約数和(自身を除く): 44004120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 97, 104, 120, 127, 130, 156, 194, 195, 254, 260, 291, 312, 381, 388, 390, 485, 508, 520, 582, 635, 762, 776, 780, 970, 1016, 1164, 1261, 1270, 1455, 1524, 1560, 1651, 1905, 1940, 2328, 2522, 2540, 2910, 3048, 3302, 3783, 3810, 3880, 4953, 5044, 5080, 5820, 6305, 6604, 7566, 7620, 8255, 9906, 10088, 11640, 12319, 12610, 13208, 15132, 15240, 16510, 18915, 19812, 24638, 24765, 25220, 30264, 33020, 36957, 37830, 39624, 49276, 49530, 50440, 61595, 66040, 73914, 75660, 98552, 99060, 123190, 147828, 151320, 160147, 184785, 198120, 246380, 295656, 320294, 369570, 480441, 492760, 640588, 739140, 800735, 960882, 1281176, 1478280, 1601470, 1921764, 2402205, 3202940, 3843528, 4804410, 6405880, 9608820, 19217640]

約数ペア:

[(1, 19217640), (2, 9608820), (3, 6405880), (4, 4804410), (5, 3843528), (6, 3202940), (8, 2402205), (10, 1921764), (12, 1601470), (13, 1478280), (15, 1281176), (20, 960882), (24, 800735), (26, 739140), (30, 640588), (39, 492760), (40, 480441), (52, 369570), (60, 320294), (65, 295656), (78, 246380), (97, 198120), (104, 184785), (120, 160147), (127, 151320), (130, 147828), (156, 123190), (194, 99060), (195, 98552), (254, 75660), (260, 73914), (291, 66040), (312, 61595), (381, 50440), (388, 49530), (390, 49276), (485, 39624), (508, 37830), (520, 36957), (582, 33020), (635, 30264), (762, 25220), (776, 24765), (780, 24638), (970, 19812), (1016, 18915), (1164, 16510), (1261, 15240), (1270, 15132), (1455, 13208), (1524, 12610), (1560, 12319), (1651, 11640), (1905, 10088), (1940, 9906), (2328, 8255), (2522, 7620), (2540, 7566), (2910, 6604), (3048, 6305), (3302, 5820), (3783, 5080), (3810, 5044), (3880, 4953)]