20804513478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{6389}}^1$

素因数の和:6534

約数の個数: 128

約数和(自身を含む): 51116728320

約数和(自身を除く): 30312214842

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 41, 42, 61, 62, 82, 93, 122, 123, 183, 186, 217, 246, 287, 366, 427, 434, 574, 651, 854, 861, 1271, 1281, 1302, 1722, 1891, 2501, 2542, 2562, 3782, 3813, 5002, 5673, 6389, 7503, 7626, 8897, 11346, 12778, 13237, 15006, 17507, 17794, 19167, 26474, 26691, 35014, 38334, 39711, 44723, 52521, 53382, 77531, 79422, 89446, 105042, 134169, 155062, 198059, 232593, 261949, 268338, 389729, 396118, 465186, 523898, 542717, 594177, 779458, 785847, 1085434, 1169187, 1188354, 1386413, 1571694, 1628151, 1833643, 2338374, 2728103, 2772826, 3256302, 3667286, 4159239, 5456206, 5500929, 8120419, 8184309, 8318478, 11001858, 12081599, 15978889, 16240838, 16368618, 24163198, 24361257, 31957778, 36244797, 47936667, 48722514, 56842933, 72489594, 84571193, 95873334, 111852223, 113685866, 169142386, 170528799, 223704446, 253713579, 335556669, 341057598, 495345559, 507427158, 671113338, 990691118, 1486036677, 2972073354, 3467418913, 6934837826, 10402256739, 20804513478]

約数ペア:

[(1, 20804513478), (2, 10402256739), (3, 6934837826), (6, 3467418913), (7, 2972073354), (14, 1486036677), (21, 990691118), (31, 671113338), (41, 507427158), (42, 495345559), (61, 341057598), (62, 335556669), (82, 253713579), (93, 223704446), (122, 170528799), (123, 169142386), (183, 113685866), (186, 111852223), (217, 95873334), (246, 84571193), (287, 72489594), (366, 56842933), (427, 48722514), (434, 47936667), (574, 36244797), (651, 31957778), (854, 24361257), (861, 24163198), (1271, 16368618), (1281, 16240838), (1302, 15978889), (1722, 12081599), (1891, 11001858), (2501, 8318478), (2542, 8184309), (2562, 8120419), (3782, 5500929), (3813, 5456206), (5002, 4159239), (5673, 3667286), (6389, 3256302), (7503, 2772826), (7626, 2728103), (8897, 2338374), (11346, 1833643), (12778, 1628151), (13237, 1571694), (15006, 1386413), (17507, 1188354), (17794, 1169187), (19167, 1085434), (26474, 785847), (26691, 779458), (35014, 594177), (38334, 542717), (39711, 523898), (44723, 465186), (52521, 396118), (53382, 389729), (77531, 268338), (79422, 261949), (89446, 232593), (105042, 198059), (134169, 155062)]