210986020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{331}}^1$

素因数の和:533

約数の個数: 96

約数和(自身を含む): 528756480

約数和(自身を除く): 317770460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 157, 203, 290, 314, 331, 406, 580, 628, 662, 785, 812, 1015, 1099, 1324, 1570, 1655, 2030, 2198, 2317, 3140, 3310, 4060, 4396, 4553, 4634, 5495, 6620, 9106, 9268, 9599, 10990, 11585, 18212, 19198, 21980, 22765, 23170, 31871, 38396, 45530, 46340, 47995, 51967, 63742, 67193, 91060, 95990, 103934, 127484, 134386, 159355, 191980, 207868, 259835, 268772, 318710, 335965, 363769, 519670, 637420, 671930, 727538, 1039340, 1343860, 1455076, 1507043, 1818845, 3014086, 3637690, 6028172, 7275380, 7535215, 10549301, 15070430, 21098602, 30140860, 42197204, 52746505, 105493010, 210986020]

約数ペア:

[(1, 210986020), (2, 105493010), (4, 52746505), (5, 42197204), (7, 30140860), (10, 21098602), (14, 15070430), (20, 10549301), (28, 7535215), (29, 7275380), (35, 6028172), (58, 3637690), (70, 3014086), (116, 1818845), (140, 1507043), (145, 1455076), (157, 1343860), (203, 1039340), (290, 727538), (314, 671930), (331, 637420), (406, 519670), (580, 363769), (628, 335965), (662, 318710), (785, 268772), (812, 259835), (1015, 207868), (1099, 191980), (1324, 159355), (1570, 134386), (1655, 127484), (2030, 103934), (2198, 95990), (2317, 91060), (3140, 67193), (3310, 63742), (4060, 51967), (4396, 47995), (4553, 46340), (4634, 45530), (5495, 38396), (6620, 31871), (9106, 23170), (9268, 22765), (9599, 21980), (10990, 19198), (11585, 18212)]