18887788305

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{1291}}^1$

素因数の和:1472

約数の個数: 128

約数和(自身を含む): 36056102400

約数和(自身を除く): 17168314095

約数列:

[1, 3, 5, 9, 15, 27, 29, 37, 45, 87, 101, 111, 135, 145, 185, 261, 303, 333, 435, 505, 555, 783, 909, 999, 1073, 1291, 1305, 1515, 1665, 2727, 2929, 3219, 3737, 3873, 3915, 4545, 4995, 5365, 6455, 8787, 9657, 11211, 11619, 13635, 14645, 16095, 18685, 19365, 26361, 28971, 33633, 34857, 37439, 43935, 47767, 48285, 56055, 58095, 79083, 100899, 108373, 112317, 130391, 131805, 143301, 144855, 168165, 174285, 187195, 238835, 325119, 336951, 391173, 395415, 429903, 504495, 541865, 561585, 651955, 716505, 975357, 1010853, 1173519, 1289709, 1385243, 1625595, 1684755, 1955865, 2149515, 2926071, 3520557, 3781339, 4155729, 4824467, 4876785, 5054265, 5867595, 6448545, 6926215, 11344017, 12467187, 14473401, 14630355, 17602785, 18906695, 20778645, 24122335, 34032051, 37401561, 43420203, 56720085, 62335935, 72367005, 102096153, 130260609, 139909543, 170160255, 187007805, 217101015, 419728629, 510480765, 651303045, 699547715, 1259185887, 2098643145, 3777557661, 6295929435, 18887788305]

約数ペア:

[(1, 18887788305), (3, 6295929435), (5, 3777557661), (9, 2098643145), (15, 1259185887), (27, 699547715), (29, 651303045), (37, 510480765), (45, 419728629), (87, 217101015), (101, 187007805), (111, 170160255), (135, 139909543), (145, 130260609), (185, 102096153), (261, 72367005), (303, 62335935), (333, 56720085), (435, 43420203), (505, 37401561), (555, 34032051), (783, 24122335), (909, 20778645), (999, 18906695), (1073, 17602785), (1291, 14630355), (1305, 14473401), (1515, 12467187), (1665, 11344017), (2727, 6926215), (2929, 6448545), (3219, 5867595), (3737, 5054265), (3873, 4876785), (3915, 4824467), (4545, 4155729), (4995, 3781339), (5365, 3520557), (6455, 2926071), (8787, 2149515), (9657, 1955865), (11211, 1684755), (11619, 1625595), (13635, 1385243), (14645, 1289709), (16095, 1173519), (18685, 1010853), (19365, 975357), (26361, 716505), (28971, 651955), (33633, 561585), (34857, 541865), (37439, 504495), (43935, 429903), (47767, 395415), (48285, 391173), (56055, 336951), (58095, 325119), (79083, 238835), (100899, 187195), (108373, 174285), (112317, 168165), (130391, 144855), (131805, 143301)]