18731622780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1657}}^1\times {\mathrm{4831}}^1$

素因数の和:6516

約数の個数: 144

約数和(自身を含む): 61239569664

約数和(自身を除く): 42507946884

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 1657, 2340, 3314, 4831, 4971, 6628, 8285, 9662, 9942, 14493, 14913, 16570, 19324, 19884, 21541, 24155, 24855, 28986, 29826, 33140, 43082, 43479, 48310, 49710, 57972, 59652, 62803, 64623, 72465, 74565, 86164, 86958, 96620, 99420, 107705, 125606, 129246, 144930, 149130, 173916, 188409, 193869, 215410, 217395, 251212, 258492, 289860, 298260, 314015, 323115, 376818, 387738, 430820, 434790, 565227, 628030, 646230, 753636, 775476, 869580, 942045, 969345, 1130454, 1256060, 1292460, 1884090, 1938690, 2260908, 2826135, 3768180, 3877380, 5652270, 8004967, 11304540, 16009934, 24014901, 32019868, 40024835, 48029802, 72044703, 80049670, 96059604, 104064571, 120074505, 144089406, 160099340, 208129142, 240149010, 288178812, 312193713, 360223515, 416258284, 480298020, 520322855, 624387426, 720447030, 936581139, 1040645710, 1248774852, 1440894060, 1560968565, 1873162278, 2081291420, 3121937130, 3746324556, 4682905695, 6243874260, 9365811390, 18731622780]

約数ペア:

[(1, 18731622780), (2, 9365811390), (3, 6243874260), (4, 4682905695), (5, 3746324556), (6, 3121937130), (9, 2081291420), (10, 1873162278), (12, 1560968565), (13, 1440894060), (15, 1248774852), (18, 1040645710), (20, 936581139), (26, 720447030), (30, 624387426), (36, 520322855), (39, 480298020), (45, 416258284), (52, 360223515), (60, 312193713), (65, 288178812), (78, 240149010), (90, 208129142), (117, 160099340), (130, 144089406), (156, 120074505), (180, 104064571), (195, 96059604), (234, 80049670), (260, 72044703), (390, 48029802), (468, 40024835), (585, 32019868), (780, 24014901), (1170, 16009934), (1657, 11304540), (2340, 8004967), (3314, 5652270), (4831, 3877380), (4971, 3768180), (6628, 2826135), (8285, 2260908), (9662, 1938690), (9942, 1884090), (14493, 1292460), (14913, 1256060), (16570, 1130454), (19324, 969345), (19884, 942045), (21541, 869580), (24155, 775476), (24855, 753636), (28986, 646230), (29826, 628030), (33140, 565227), (43082, 434790), (43479, 430820), (48310, 387738), (49710, 376818), (57972, 323115), (59652, 314015), (62803, 298260), (64623, 289860), (72465, 258492), (74565, 251212), (86164, 217395), (86958, 215410), (96620, 193869), (99420, 188409), (107705, 173916), (125606, 149130), (129246, 144930)]