20147490860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2\times {\mathrm{3391}}^1$

素因数の和:3512

約数の個数: 144

約数和(自身を含む): 51314393088

約数和(自身を除く): 31166902228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 37, 62, 70, 74, 124, 140, 148, 155, 185, 217, 259, 310, 370, 434, 518, 620, 740, 868, 1036, 1085, 1147, 1295, 1369, 2170, 2294, 2590, 2738, 3391, 4340, 4588, 5180, 5476, 5735, 6782, 6845, 8029, 9583, 11470, 13564, 13690, 16058, 16955, 19166, 22940, 23737, 27380, 32116, 33910, 38332, 40145, 42439, 47474, 47915, 67820, 80290, 84878, 94948, 95830, 105121, 118685, 125467, 160580, 169756, 191660, 210242, 212195, 237370, 250934, 297073, 420484, 424390, 474740, 501868, 525605, 594146, 627335, 735847, 848780, 878269, 1051210, 1188292, 1254670, 1471694, 1485365, 1756538, 2102420, 2509340, 2943388, 2970730, 3513076, 3679235, 3889477, 4391345, 4642279, 5941460, 7358470, 7778954, 8782690, 9284558, 14716940, 15557908, 17565380, 18569116, 19447385, 23211395, 27226339, 32495953, 38894770, 46422790, 54452678, 64991906, 77789540, 92845580, 108905356, 129983812, 136131695, 143910649, 162479765, 272263390, 287821298, 324959530, 544526780, 575642596, 649919060, 719553245, 1007374543, 1439106490, 2014749086, 2878212980, 4029498172, 5036872715, 10073745430, 20147490860]

約数ペア:

[(1, 20147490860), (2, 10073745430), (4, 5036872715), (5, 4029498172), (7, 2878212980), (10, 2014749086), (14, 1439106490), (20, 1007374543), (28, 719553245), (31, 649919060), (35, 575642596), (37, 544526780), (62, 324959530), (70, 287821298), (74, 272263390), (124, 162479765), (140, 143910649), (148, 136131695), (155, 129983812), (185, 108905356), (217, 92845580), (259, 77789540), (310, 64991906), (370, 54452678), (434, 46422790), (518, 38894770), (620, 32495953), (740, 27226339), (868, 23211395), (1036, 19447385), (1085, 18569116), (1147, 17565380), (1295, 15557908), (1369, 14716940), (2170, 9284558), (2294, 8782690), (2590, 7778954), (2738, 7358470), (3391, 5941460), (4340, 4642279), (4588, 4391345), (5180, 3889477), (5476, 3679235), (5735, 3513076), (6782, 2970730), (6845, 2943388), (8029, 2509340), (9583, 2102420), (11470, 1756538), (13564, 1485365), (13690, 1471694), (16058, 1254670), (16955, 1188292), (19166, 1051210), (22940, 878269), (23737, 848780), (27380, 735847), (32116, 627335), (33910, 594146), (38332, 525605), (40145, 501868), (42439, 474740), (47474, 424390), (47915, 420484), (67820, 297073), (80290, 250934), (84878, 237370), (94948, 212195), (95830, 210242), (105121, 191660), (118685, 169756), (125467, 160580)]