18742360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1$

素因数の和:321

約数の個数: 128

約数和(自身を含む): 54835200

約数和(自身を除く): 36092840

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 35, 38, 40, 52, 56, 65, 70, 76, 91, 95, 104, 130, 133, 140, 152, 182, 190, 247, 260, 266, 271, 280, 364, 380, 455, 494, 520, 532, 542, 665, 728, 760, 910, 988, 1064, 1084, 1235, 1330, 1355, 1729, 1820, 1897, 1976, 2168, 2470, 2660, 2710, 3458, 3523, 3640, 3794, 4940, 5149, 5320, 5420, 6916, 7046, 7588, 8645, 9485, 9880, 10298, 10840, 13832, 14092, 15176, 17290, 17615, 18970, 20596, 24661, 25745, 28184, 34580, 35230, 36043, 37940, 41192, 49322, 51490, 66937, 69160, 70460, 72086, 75880, 98644, 102980, 123305, 133874, 140920, 144172, 180215, 197288, 205960, 246610, 267748, 288344, 334685, 360430, 468559, 493220, 535496, 669370, 720860, 937118, 986440, 1338740, 1441720, 1874236, 2342795, 2677480, 3748472, 4685590, 9371180, 18742360]

約数ペア:

[(1, 18742360), (2, 9371180), (4, 4685590), (5, 3748472), (7, 2677480), (8, 2342795), (10, 1874236), (13, 1441720), (14, 1338740), (19, 986440), (20, 937118), (26, 720860), (28, 669370), (35, 535496), (38, 493220), (40, 468559), (52, 360430), (56, 334685), (65, 288344), (70, 267748), (76, 246610), (91, 205960), (95, 197288), (104, 180215), (130, 144172), (133, 140920), (140, 133874), (152, 123305), (182, 102980), (190, 98644), (247, 75880), (260, 72086), (266, 70460), (271, 69160), (280, 66937), (364, 51490), (380, 49322), (455, 41192), (494, 37940), (520, 36043), (532, 35230), (542, 34580), (665, 28184), (728, 25745), (760, 24661), (910, 20596), (988, 18970), (1064, 17615), (1084, 17290), (1235, 15176), (1330, 14092), (1355, 13832), (1729, 10840), (1820, 10298), (1897, 9880), (1976, 9485), (2168, 8645), (2470, 7588), (2660, 7046), (2710, 6916), (3458, 5420), (3523, 5320), (3640, 5149), (3794, 4940)]