18817890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:204

約数の個数: 128

約数和(自身を含む): 56996352

約数和(自身を除く): 38178462

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 61, 65, 70, 78, 91, 105, 113, 122, 130, 182, 183, 195, 210, 226, 273, 305, 339, 366, 390, 427, 455, 546, 565, 610, 678, 791, 793, 854, 910, 915, 1130, 1281, 1365, 1469, 1582, 1586, 1695, 1830, 2135, 2373, 2379, 2562, 2730, 2938, 3390, 3955, 3965, 4270, 4407, 4746, 4758, 5551, 6405, 6893, 7345, 7910, 7930, 8814, 10283, 11102, 11865, 11895, 12810, 13786, 14690, 16653, 20566, 20679, 22035, 23730, 23790, 27755, 30849, 33306, 34465, 41358, 44070, 48251, 51415, 55510, 61698, 68930, 83265, 89609, 96502, 102830, 103395, 144753, 154245, 166530, 179218, 206790, 241255, 268827, 289506, 308490, 448045, 482510, 537654, 627263, 723765, 896090, 1254526, 1344135, 1447530, 1881789, 2688270, 3136315, 3763578, 6272630, 9408945, 18817890]

約数ペア:

[(1, 18817890), (2, 9408945), (3, 6272630), (5, 3763578), (6, 3136315), (7, 2688270), (10, 1881789), (13, 1447530), (14, 1344135), (15, 1254526), (21, 896090), (26, 723765), (30, 627263), (35, 537654), (39, 482510), (42, 448045), (61, 308490), (65, 289506), (70, 268827), (78, 241255), (91, 206790), (105, 179218), (113, 166530), (122, 154245), (130, 144753), (182, 103395), (183, 102830), (195, 96502), (210, 89609), (226, 83265), (273, 68930), (305, 61698), (339, 55510), (366, 51415), (390, 48251), (427, 44070), (455, 41358), (546, 34465), (565, 33306), (610, 30849), (678, 27755), (791, 23790), (793, 23730), (854, 22035), (910, 20679), (915, 20566), (1130, 16653), (1281, 14690), (1365, 13786), (1469, 12810), (1582, 11895), (1586, 11865), (1695, 11102), (1830, 10283), (2135, 8814), (2373, 7930), (2379, 7910), (2562, 7345), (2730, 6893), (2938, 6405), (3390, 5551), (3955, 4758), (3965, 4746), (4270, 4407)]