19873440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{373}}^1$

素因数の和:431

約数の個数: 144

約数和(自身を含む): 69837768

約数和(自身を除く): 49964328

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 37, 40, 45, 48, 60, 72, 74, 80, 90, 96, 111, 120, 144, 148, 160, 180, 185, 222, 240, 288, 296, 333, 360, 370, 373, 444, 480, 555, 592, 666, 720, 740, 746, 888, 1110, 1119, 1184, 1332, 1440, 1480, 1492, 1665, 1776, 1865, 2220, 2238, 2664, 2960, 2984, 3330, 3357, 3552, 3730, 4440, 4476, 5328, 5595, 5920, 5968, 6660, 6714, 7460, 8880, 8952, 10656, 11190, 11936, 13320, 13428, 13801, 14920, 16785, 17760, 17904, 22380, 26640, 26856, 27602, 29840, 33570, 35808, 41403, 44760, 53280, 53712, 55204, 59680, 67140, 69005, 82806, 89520, 107424, 110408, 124209, 134280, 138010, 165612, 179040, 207015, 220816, 248418, 268560, 276020, 331224, 414030, 441632, 496836, 537120, 552040, 621045, 662448, 828060, 993672, 1104080, 1242090, 1324896, 1656120, 1987344, 2208160, 2484180, 3312240, 3974688, 4968360, 6624480, 9936720, 19873440]

約数ペア:

[(1, 19873440), (2, 9936720), (3, 6624480), (4, 4968360), (5, 3974688), (6, 3312240), (8, 2484180), (9, 2208160), (10, 1987344), (12, 1656120), (15, 1324896), (16, 1242090), (18, 1104080), (20, 993672), (24, 828060), (30, 662448), (32, 621045), (36, 552040), (37, 537120), (40, 496836), (45, 441632), (48, 414030), (60, 331224), (72, 276020), (74, 268560), (80, 248418), (90, 220816), (96, 207015), (111, 179040), (120, 165612), (144, 138010), (148, 134280), (160, 124209), (180, 110408), (185, 107424), (222, 89520), (240, 82806), (288, 69005), (296, 67140), (333, 59680), (360, 55204), (370, 53712), (373, 53280), (444, 44760), (480, 41403), (555, 35808), (592, 33570), (666, 29840), (720, 27602), (740, 26856), (746, 26640), (888, 22380), (1110, 17904), (1119, 17760), (1184, 16785), (1332, 14920), (1440, 13801), (1480, 13428), (1492, 13320), (1665, 11936), (1776, 11190), (1865, 10656), (2220, 8952), (2238, 8880), (2664, 7460), (2960, 6714), (2984, 6660), (3330, 5968), (3357, 5920), (3552, 5595), (3730, 5328), (4440, 4476)]