20102460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2081}}^1$

素因数の和:2123

約数の個数: 96

約数和(自身を含む): 67156992

約数和(自身を除く): 47054532

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1932, 2081, 2415, 3220, 4162, 4830, 6243, 8324, 9660, 10405, 12486, 14567, 20810, 24972, 29134, 31215, 41620, 43701, 47863, 58268, 62430, 72835, 87402, 95726, 124860, 143589, 145670, 174804, 191452, 218505, 239315, 287178, 291340, 335041, 437010, 478630, 574356, 670082, 717945, 874020, 957260, 1005123, 1340164, 1435890, 1675205, 2010246, 2871780, 3350410, 4020492, 5025615, 6700820, 10051230, 20102460]

約数ペア:

[(1, 20102460), (2, 10051230), (3, 6700820), (4, 5025615), (5, 4020492), (6, 3350410), (7, 2871780), (10, 2010246), (12, 1675205), (14, 1435890), (15, 1340164), (20, 1005123), (21, 957260), (23, 874020), (28, 717945), (30, 670082), (35, 574356), (42, 478630), (46, 437010), (60, 335041), (69, 291340), (70, 287178), (84, 239315), (92, 218505), (105, 191452), (115, 174804), (138, 145670), (140, 143589), (161, 124860), (210, 95726), (230, 87402), (276, 72835), (322, 62430), (345, 58268), (420, 47863), (460, 43701), (483, 41620), (644, 31215), (690, 29134), (805, 24972), (966, 20810), (1380, 14567), (1610, 12486), (1932, 10405), (2081, 9660), (2415, 8324), (3220, 6243), (4162, 4830)]