18995060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:265

約数の個数: 96

約数和(自身を含む): 49539840

約数和(自身を除く): 30544780

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 37, 38, 70, 74, 76, 95, 133, 140, 148, 185, 190, 193, 259, 266, 370, 380, 386, 518, 532, 665, 703, 740, 772, 965, 1036, 1295, 1330, 1351, 1406, 1930, 2590, 2660, 2702, 2812, 3515, 3667, 3860, 4921, 5180, 5404, 6755, 7030, 7141, 7334, 9842, 13510, 14060, 14282, 14668, 18335, 19684, 24605, 25669, 27020, 28564, 35705, 36670, 49210, 49987, 51338, 71410, 73340, 98420, 99974, 102676, 128345, 135679, 142820, 199948, 249935, 256690, 271358, 499870, 513380, 542716, 678395, 949753, 999740, 1356790, 1899506, 2713580, 3799012, 4748765, 9497530, 18995060]

約数ペア:

[(1, 18995060), (2, 9497530), (4, 4748765), (5, 3799012), (7, 2713580), (10, 1899506), (14, 1356790), (19, 999740), (20, 949753), (28, 678395), (35, 542716), (37, 513380), (38, 499870), (70, 271358), (74, 256690), (76, 249935), (95, 199948), (133, 142820), (140, 135679), (148, 128345), (185, 102676), (190, 99974), (193, 98420), (259, 73340), (266, 71410), (370, 51338), (380, 49987), (386, 49210), (518, 36670), (532, 35705), (665, 28564), (703, 27020), (740, 25669), (772, 24605), (965, 19684), (1036, 18335), (1295, 14668), (1330, 14282), (1351, 14060), (1406, 13510), (1930, 9842), (2590, 7334), (2660, 7141), (2702, 7030), (2812, 6755), (3515, 5404), (3667, 5180), (3860, 4921)]