19556040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{751}}^1$

素因数の和:803

約数の個数: 128

約数和(自身を含む): 69304320

約数和(自身を除く): 49748280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 751, 840, 868, 930, 1085, 1240, 1302, 1502, 1736, 1860, 2170, 2253, 2604, 3004, 3255, 3720, 3755, 4340, 4506, 5208, 5257, 6008, 6510, 7510, 8680, 9012, 10514, 11265, 13020, 15020, 15771, 18024, 21028, 22530, 23281, 26040, 26285, 30040, 31542, 42056, 45060, 46562, 52570, 63084, 69843, 78855, 90120, 93124, 105140, 116405, 126168, 139686, 157710, 162967, 186248, 210280, 232810, 279372, 315420, 325934, 349215, 465620, 488901, 558744, 630840, 651868, 698430, 814835, 931240, 977802, 1303736, 1396860, 1629670, 1955604, 2444505, 2793720, 3259340, 3911208, 4889010, 6518680, 9778020, 19556040]

約数ペア:

[(1, 19556040), (2, 9778020), (3, 6518680), (4, 4889010), (5, 3911208), (6, 3259340), (7, 2793720), (8, 2444505), (10, 1955604), (12, 1629670), (14, 1396860), (15, 1303736), (20, 977802), (21, 931240), (24, 814835), (28, 698430), (30, 651868), (31, 630840), (35, 558744), (40, 488901), (42, 465620), (56, 349215), (60, 325934), (62, 315420), (70, 279372), (84, 232810), (93, 210280), (105, 186248), (120, 162967), (124, 157710), (140, 139686), (155, 126168), (168, 116405), (186, 105140), (210, 93124), (217, 90120), (248, 78855), (280, 69843), (310, 63084), (372, 52570), (420, 46562), (434, 45060), (465, 42056), (620, 31542), (651, 30040), (744, 26285), (751, 26040), (840, 23281), (868, 22530), (930, 21028), (1085, 18024), (1240, 15771), (1302, 15020), (1502, 13020), (1736, 11265), (1860, 10514), (2170, 9012), (2253, 8680), (2604, 7510), (3004, 6510), (3255, 6008), (3720, 5257), (3755, 5208), (4340, 4506)]