42072520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:227

約数の個数: 128

約数和(自身を含む): 116121600

約数和(自身を除く): 74049080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 47, 56, 70, 92, 94, 115, 139, 140, 161, 184, 188, 230, 235, 278, 280, 322, 329, 376, 460, 470, 556, 644, 658, 695, 805, 920, 940, 973, 1081, 1112, 1288, 1316, 1390, 1610, 1645, 1880, 1946, 2162, 2632, 2780, 3197, 3220, 3290, 3892, 4324, 4865, 5405, 5560, 6394, 6440, 6533, 6580, 7567, 7784, 8648, 9730, 10810, 12788, 13066, 13160, 15134, 15985, 19460, 21620, 22379, 25576, 26132, 30268, 31970, 32665, 37835, 38920, 43240, 44758, 45731, 52264, 60536, 63940, 65330, 75670, 89516, 91462, 111895, 127880, 130660, 150259, 151340, 179032, 182924, 223790, 228655, 261320, 300518, 302680, 365848, 447580, 457310, 601036, 751295, 895160, 914620, 1051813, 1202072, 1502590, 1829240, 2103626, 3005180, 4207252, 5259065, 6010360, 8414504, 10518130, 21036260, 42072520]

約数ペア:

[(1, 42072520), (2, 21036260), (4, 10518130), (5, 8414504), (7, 6010360), (8, 5259065), (10, 4207252), (14, 3005180), (20, 2103626), (23, 1829240), (28, 1502590), (35, 1202072), (40, 1051813), (46, 914620), (47, 895160), (56, 751295), (70, 601036), (92, 457310), (94, 447580), (115, 365848), (139, 302680), (140, 300518), (161, 261320), (184, 228655), (188, 223790), (230, 182924), (235, 179032), (278, 151340), (280, 150259), (322, 130660), (329, 127880), (376, 111895), (460, 91462), (470, 89516), (556, 75670), (644, 65330), (658, 63940), (695, 60536), (805, 52264), (920, 45731), (940, 44758), (973, 43240), (1081, 38920), (1112, 37835), (1288, 32665), (1316, 31970), (1390, 30268), (1610, 26132), (1645, 25576), (1880, 22379), (1946, 21620), (2162, 19460), (2632, 15985), (2780, 15134), (3197, 13160), (3220, 13066), (3290, 12788), (3892, 10810), (4324, 9730), (4865, 8648), (5405, 7784), (5560, 7567), (6394, 6580), (6440, 6533)]