20938320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2237}}^1$

素因数の和:2269

約数の個数: 120

約数和(自身を含む): 75760776

約数和(自身を除く): 54822456

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2237, 2340, 3120, 4474, 4680, 6711, 8948, 9360, 11185, 13422, 17896, 20133, 22370, 26844, 29081, 33555, 35792, 40266, 44740, 53688, 58162, 67110, 80532, 87243, 89480, 100665, 107376, 116324, 134220, 145405, 161064, 174486, 178960, 201330, 232648, 261729, 268440, 290810, 322128, 348972, 402660, 436215, 465296, 523458, 536880, 581620, 697944, 805320, 872430, 1046916, 1163240, 1308645, 1395888, 1610640, 1744860, 2093832, 2326480, 2617290, 3489720, 4187664, 5234580, 6979440, 10469160, 20938320]

約数ペア:

[(1, 20938320), (2, 10469160), (3, 6979440), (4, 5234580), (5, 4187664), (6, 3489720), (8, 2617290), (9, 2326480), (10, 2093832), (12, 1744860), (13, 1610640), (15, 1395888), (16, 1308645), (18, 1163240), (20, 1046916), (24, 872430), (26, 805320), (30, 697944), (36, 581620), (39, 536880), (40, 523458), (45, 465296), (48, 436215), (52, 402660), (60, 348972), (65, 322128), (72, 290810), (78, 268440), (80, 261729), (90, 232648), (104, 201330), (117, 178960), (120, 174486), (130, 161064), (144, 145405), (156, 134220), (180, 116324), (195, 107376), (208, 100665), (234, 89480), (240, 87243), (260, 80532), (312, 67110), (360, 58162), (390, 53688), (468, 44740), (520, 40266), (585, 35792), (624, 33555), (720, 29081), (780, 26844), (936, 22370), (1040, 20133), (1170, 17896), (1560, 13422), (1872, 11185), (2237, 9360), (2340, 8948), (3120, 6711), (4474, 4680)]