81173820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14867}}^1$

素因数の和:14899

約数の個数: 96

約数和(自身を含む): 279756288

約数和(自身を除く): 198582468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 14867, 29734, 44601, 59468, 74335, 89202, 104069, 148670, 178404, 193271, 208138, 223005, 297340, 312207, 386542, 416276, 446010, 520345, 579813, 624414, 773084, 892020, 966355, 1040690, 1159626, 1248828, 1352897, 1561035, 1932710, 2081380, 2319252, 2705794, 2899065, 3122070, 3865420, 4058691, 5411588, 5798130, 6244140, 6764485, 8117382, 11596260, 13528970, 16234764, 20293455, 27057940, 40586910, 81173820]

約数ペア:

[(1, 81173820), (2, 40586910), (3, 27057940), (4, 20293455), (5, 16234764), (6, 13528970), (7, 11596260), (10, 8117382), (12, 6764485), (13, 6244140), (14, 5798130), (15, 5411588), (20, 4058691), (21, 3865420), (26, 3122070), (28, 2899065), (30, 2705794), (35, 2319252), (39, 2081380), (42, 1932710), (52, 1561035), (60, 1352897), (65, 1248828), (70, 1159626), (78, 1040690), (84, 966355), (91, 892020), (105, 773084), (130, 624414), (140, 579813), (156, 520345), (182, 446010), (195, 416276), (210, 386542), (260, 312207), (273, 297340), (364, 223005), (390, 208138), (420, 193271), (455, 178404), (546, 148670), (780, 104069), (910, 89202), (1092, 74335), (1365, 59468), (1820, 44601), (2730, 29734), (5460, 14867)]