1005256840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{647}}^1$

素因数の和:875

約数の個数: 128

約数和(自身を含む): 2687385600

約数和(自身を除く): 1682128760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 179, 217, 248, 280, 310, 358, 434, 620, 647, 716, 868, 895, 1085, 1240, 1253, 1294, 1432, 1736, 1790, 2170, 2506, 2588, 3235, 3580, 4340, 4529, 5012, 5176, 5549, 6265, 6470, 7160, 8680, 9058, 10024, 11098, 12530, 12940, 18116, 20057, 22196, 22645, 25060, 25880, 27745, 36232, 38843, 40114, 44392, 45290, 50120, 55490, 77686, 80228, 90580, 100285, 110980, 115813, 140399, 155372, 160456, 181160, 194215, 200570, 221960, 231626, 280798, 310744, 388430, 401140, 463252, 561596, 579065, 701995, 776860, 802280, 810691, 926504, 1123192, 1158130, 1403990, 1553720, 1621382, 2316260, 2807980, 3242764, 3590203, 4053455, 4632520, 5615960, 6485528, 7180406, 8106910, 14360812, 16213820, 17951015, 25131421, 28721624, 32427640, 35902030, 50262842, 71804060, 100525684, 125657105, 143608120, 201051368, 251314210, 502628420, 1005256840]

約数ペア:

[(1, 1005256840), (2, 502628420), (4, 251314210), (5, 201051368), (7, 143608120), (8, 125657105), (10, 100525684), (14, 71804060), (20, 50262842), (28, 35902030), (31, 32427640), (35, 28721624), (40, 25131421), (56, 17951015), (62, 16213820), (70, 14360812), (124, 8106910), (140, 7180406), (155, 6485528), (179, 5615960), (217, 4632520), (248, 4053455), (280, 3590203), (310, 3242764), (358, 2807980), (434, 2316260), (620, 1621382), (647, 1553720), (716, 1403990), (868, 1158130), (895, 1123192), (1085, 926504), (1240, 810691), (1253, 802280), (1294, 776860), (1432, 701995), (1736, 579065), (1790, 561596), (2170, 463252), (2506, 401140), (2588, 388430), (3235, 310744), (3580, 280798), (4340, 231626), (4529, 221960), (5012, 200570), (5176, 194215), (5549, 181160), (6265, 160456), (6470, 155372), (7160, 140399), (8680, 115813), (9058, 110980), (10024, 100285), (11098, 90580), (12530, 80228), (12940, 77686), (18116, 55490), (20057, 50120), (22196, 45290), (22645, 44392), (25060, 40114), (25880, 38843), (27745, 36232)]