1282520020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{433}}^1$

素因数の和:649

約数の個数: 96

約数和(自身を含む): 2897814528

約数和(自身を除く): 1615294508

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 137, 188, 230, 235, 274, 433, 460, 470, 548, 685, 866, 940, 1081, 1370, 1732, 2162, 2165, 2740, 3151, 4324, 4330, 5405, 6302, 6439, 8660, 9959, 10810, 12604, 12878, 15755, 19918, 20351, 21620, 25756, 31510, 32195, 39836, 40702, 49795, 59321, 63020, 64390, 81404, 99590, 101755, 118642, 128780, 148097, 199180, 203510, 237284, 296194, 296605, 407020, 468073, 592388, 593210, 740485, 936146, 1186420, 1364383, 1480970, 1872292, 2340365, 2728766, 2788087, 2961940, 4680730, 5457532, 5576174, 6821915, 9361460, 11152348, 13643830, 13940435, 27287660, 27880870, 55761740, 64126001, 128252002, 256504004, 320630005, 641260010, 1282520020]

約数ペア:

[(1, 1282520020), (2, 641260010), (4, 320630005), (5, 256504004), (10, 128252002), (20, 64126001), (23, 55761740), (46, 27880870), (47, 27287660), (92, 13940435), (94, 13643830), (115, 11152348), (137, 9361460), (188, 6821915), (230, 5576174), (235, 5457532), (274, 4680730), (433, 2961940), (460, 2788087), (470, 2728766), (548, 2340365), (685, 1872292), (866, 1480970), (940, 1364383), (1081, 1186420), (1370, 936146), (1732, 740485), (2162, 593210), (2165, 592388), (2740, 468073), (3151, 407020), (4324, 296605), (4330, 296194), (5405, 237284), (6302, 203510), (6439, 199180), (8660, 148097), (9959, 128780), (10810, 118642), (12604, 101755), (12878, 99590), (15755, 81404), (19918, 64390), (20351, 63020), (21620, 59321), (25756, 49795), (31510, 40702), (32195, 39836)]