81596340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2089}}^1$

素因数の和:2142

約数の個数: 144

約数和(自身を含む): 292131840

約数和(自身を除く): 210535500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 558, 620, 630, 651, 868, 930, 1085, 1116, 1260, 1302, 1395, 1860, 1953, 2089, 2170, 2604, 2790, 3255, 3906, 4178, 4340, 5580, 6267, 6510, 7812, 8356, 9765, 10445, 12534, 13020, 14623, 18801, 19530, 20890, 25068, 29246, 31335, 37602, 39060, 41780, 43869, 58492, 62670, 64759, 73115, 75204, 87738, 94005, 125340, 129518, 131607, 146230, 175476, 188010, 194277, 219345, 259036, 263214, 292460, 323795, 376020, 388554, 438690, 453313, 526428, 582831, 647590, 658035, 777108, 877380, 906626, 971385, 1165662, 1295180, 1316070, 1359939, 1813252, 1942770, 2266565, 2331324, 2632140, 2719878, 2914155, 3885540, 4079817, 4533130, 5439756, 5828310, 6799695, 8159634, 9066260, 11656620, 13599390, 16319268, 20399085, 27198780, 40798170, 81596340]

約数ペア:

[(1, 81596340), (2, 40798170), (3, 27198780), (4, 20399085), (5, 16319268), (6, 13599390), (7, 11656620), (9, 9066260), (10, 8159634), (12, 6799695), (14, 5828310), (15, 5439756), (18, 4533130), (20, 4079817), (21, 3885540), (28, 2914155), (30, 2719878), (31, 2632140), (35, 2331324), (36, 2266565), (42, 1942770), (45, 1813252), (60, 1359939), (62, 1316070), (63, 1295180), (70, 1165662), (84, 971385), (90, 906626), (93, 877380), (105, 777108), (124, 658035), (126, 647590), (140, 582831), (155, 526428), (180, 453313), (186, 438690), (210, 388554), (217, 376020), (252, 323795), (279, 292460), (310, 263214), (315, 259036), (372, 219345), (420, 194277), (434, 188010), (465, 175476), (558, 146230), (620, 131607), (630, 129518), (651, 125340), (868, 94005), (930, 87738), (1085, 75204), (1116, 73115), (1260, 64759), (1302, 62670), (1395, 58492), (1860, 43869), (1953, 41780), (2089, 39060), (2170, 37602), (2604, 31335), (2790, 29246), (3255, 25068), (3906, 20890), (4178, 19530), (4340, 18801), (5580, 14623), (6267, 13020), (6510, 12534), (7812, 10445), (8356, 9765)]