128544780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1811}}^1$

素因数の和:1856

約数の個数: 144

約数和(自身を含む): 445665024

約数和(自身を除く): 317120244

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, 169, 182, 195, 210, 260, 273, 338, 364, 390, 420, 455, 507, 546, 676, 780, 845, 910, 1014, 1092, 1183, 1365, 1690, 1811, 1820, 2028, 2366, 2535, 2730, 3380, 3549, 3622, 4732, 5070, 5433, 5460, 5915, 7098, 7244, 9055, 10140, 10866, 11830, 12677, 14196, 17745, 18110, 21732, 23543, 23660, 25354, 27165, 35490, 36220, 38031, 47086, 50708, 54330, 63385, 70629, 70980, 76062, 94172, 108660, 117715, 126770, 141258, 152124, 164801, 190155, 235430, 253540, 282516, 306059, 329602, 353145, 380310, 470860, 494403, 612118, 659204, 706290, 760620, 824005, 918177, 988806, 1224236, 1412580, 1530295, 1648010, 1836354, 1977612, 2142413, 2472015, 3060590, 3296020, 3672708, 4284826, 4590885, 4944030, 6121180, 6427239, 8569652, 9181770, 9888060, 10712065, 12854478, 18363540, 21424130, 25708956, 32136195, 42848260, 64272390, 128544780]

約数ペア:

[(1, 128544780), (2, 64272390), (3, 42848260), (4, 32136195), (5, 25708956), (6, 21424130), (7, 18363540), (10, 12854478), (12, 10712065), (13, 9888060), (14, 9181770), (15, 8569652), (20, 6427239), (21, 6121180), (26, 4944030), (28, 4590885), (30, 4284826), (35, 3672708), (39, 3296020), (42, 3060590), (52, 2472015), (60, 2142413), (65, 1977612), (70, 1836354), (78, 1648010), (84, 1530295), (91, 1412580), (105, 1224236), (130, 988806), (140, 918177), (156, 824005), (169, 760620), (182, 706290), (195, 659204), (210, 612118), (260, 494403), (273, 470860), (338, 380310), (364, 353145), (390, 329602), (420, 306059), (455, 282516), (507, 253540), (546, 235430), (676, 190155), (780, 164801), (845, 152124), (910, 141258), (1014, 126770), (1092, 117715), (1183, 108660), (1365, 94172), (1690, 76062), (1811, 70980), (1820, 70629), (2028, 63385), (2366, 54330), (2535, 50708), (2730, 47086), (3380, 38031), (3549, 36220), (3622, 35490), (4732, 27165), (5070, 25354), (5433, 23660), (5460, 23543), (5915, 21732), (7098, 18110), (7244, 17745), (9055, 14196), (10140, 12677), (10866, 11830)]