18815490

素因数分解:

$2^1\times 3^6\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:143

約数の個数: 112

約数和(自身を含む): 53119800

約数和(自身を除く): 34304310

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 81, 87, 89, 90, 135, 145, 162, 174, 178, 243, 261, 267, 270, 290, 405, 435, 445, 486, 522, 534, 729, 783, 801, 810, 870, 890, 1215, 1305, 1335, 1458, 1566, 1602, 2349, 2403, 2430, 2581, 2610, 2670, 3645, 3915, 4005, 4698, 4806, 5162, 7047, 7209, 7290, 7743, 7830, 8010, 11745, 12015, 12905, 14094, 14418, 15486, 21141, 21627, 23229, 23490, 24030, 25810, 35235, 36045, 38715, 42282, 43254, 46458, 64881, 69687, 70470, 72090, 77430, 105705, 108135, 116145, 129762, 139374, 209061, 211410, 216270, 232290, 324405, 348435, 418122, 627183, 648810, 696870, 1045305, 1254366, 1881549, 2090610, 3135915, 3763098, 6271830, 9407745, 18815490]

約数ペア:

[(1, 18815490), (2, 9407745), (3, 6271830), (5, 3763098), (6, 3135915), (9, 2090610), (10, 1881549), (15, 1254366), (18, 1045305), (27, 696870), (29, 648810), (30, 627183), (45, 418122), (54, 348435), (58, 324405), (81, 232290), (87, 216270), (89, 211410), (90, 209061), (135, 139374), (145, 129762), (162, 116145), (174, 108135), (178, 105705), (243, 77430), (261, 72090), (267, 70470), (270, 69687), (290, 64881), (405, 46458), (435, 43254), (445, 42282), (486, 38715), (522, 36045), (534, 35235), (729, 25810), (783, 24030), (801, 23490), (810, 23229), (870, 21627), (890, 21141), (1215, 15486), (1305, 14418), (1335, 14094), (1458, 12905), (1566, 12015), (1602, 11745), (2349, 8010), (2403, 7830), (2430, 7743), (2581, 7290), (2610, 7209), (2670, 7047), (3645, 5162), (3915, 4806), (4005, 4698)]