19404840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1777}}^1$

素因数の和:1811

約数の個数: 128

約数和(自身を含む): 71688960

約数和(自身を除く): 52284120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1777, 1820, 2184, 2730, 3554, 3640, 5331, 5460, 7108, 8885, 10662, 10920, 12439, 14216, 17770, 21324, 23101, 24878, 26655, 35540, 37317, 42648, 46202, 49756, 53310, 62195, 69303, 71080, 74634, 92404, 99512, 106620, 115505, 124390, 138606, 149268, 161707, 184808, 186585, 213240, 231010, 248780, 277212, 298536, 323414, 346515, 373170, 462020, 485121, 497560, 554424, 646828, 693030, 746340, 808535, 924040, 970242, 1293656, 1386060, 1492680, 1617070, 1940484, 2425605, 2772120, 3234140, 3880968, 4851210, 6468280, 9702420, 19404840]

約数ペア:

[(1, 19404840), (2, 9702420), (3, 6468280), (4, 4851210), (5, 3880968), (6, 3234140), (7, 2772120), (8, 2425605), (10, 1940484), (12, 1617070), (13, 1492680), (14, 1386060), (15, 1293656), (20, 970242), (21, 924040), (24, 808535), (26, 746340), (28, 693030), (30, 646828), (35, 554424), (39, 497560), (40, 485121), (42, 462020), (52, 373170), (56, 346515), (60, 323414), (65, 298536), (70, 277212), (78, 248780), (84, 231010), (91, 213240), (104, 186585), (105, 184808), (120, 161707), (130, 149268), (140, 138606), (156, 124390), (168, 115505), (182, 106620), (195, 99512), (210, 92404), (260, 74634), (273, 71080), (280, 69303), (312, 62195), (364, 53310), (390, 49756), (420, 46202), (455, 42648), (520, 37317), (546, 35540), (728, 26655), (780, 24878), (840, 23101), (910, 21324), (1092, 17770), (1365, 14216), (1560, 12439), (1777, 10920), (1820, 10662), (2184, 8885), (2730, 7108), (3554, 5460), (3640, 5331)]