18642820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:173

約数の個数: 96

約数和(自身を含む): 47496960

約数和(自身を除く): 28854140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 59, 61, 70, 74, 118, 122, 140, 148, 185, 236, 244, 259, 295, 305, 370, 413, 427, 518, 590, 610, 740, 826, 854, 1036, 1180, 1220, 1295, 1652, 1708, 2065, 2135, 2183, 2257, 2590, 3599, 4130, 4270, 4366, 4514, 5180, 7198, 8260, 8540, 8732, 9028, 10915, 11285, 14396, 15281, 15799, 17995, 21830, 22570, 25193, 30562, 31598, 35990, 43660, 45140, 50386, 61124, 63196, 71980, 76405, 78995, 100772, 125965, 133163, 152810, 157990, 251930, 266326, 305620, 315980, 503860, 532652, 665815, 932141, 1331630, 1864282, 2663260, 3728564, 4660705, 9321410, 18642820]

約数ペア:

[(1, 18642820), (2, 9321410), (4, 4660705), (5, 3728564), (7, 2663260), (10, 1864282), (14, 1331630), (20, 932141), (28, 665815), (35, 532652), (37, 503860), (59, 315980), (61, 305620), (70, 266326), (74, 251930), (118, 157990), (122, 152810), (140, 133163), (148, 125965), (185, 100772), (236, 78995), (244, 76405), (259, 71980), (295, 63196), (305, 61124), (370, 50386), (413, 45140), (427, 43660), (518, 35990), (590, 31598), (610, 30562), (740, 25193), (826, 22570), (854, 21830), (1036, 17995), (1180, 15799), (1220, 15281), (1295, 14396), (1652, 11285), (1708, 10915), (2065, 9028), (2135, 8732), (2183, 8540), (2257, 8260), (2590, 7198), (3599, 5180), (4130, 4514), (4270, 4366)]