2548821860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{101}}^2$

素因数の和:286

約数の個数: 108

約数和(自身を含む): 6015756852

約数和(自身を除く): 3466934992

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 101, 124, 130, 155, 202, 260, 310, 403, 404, 505, 620, 806, 961, 1010, 1313, 1612, 1922, 2015, 2020, 2626, 3131, 3844, 4030, 4805, 5252, 6262, 6565, 8060, 9610, 10201, 12493, 12524, 13130, 15655, 19220, 20402, 24986, 26260, 31310, 40703, 40804, 49972, 51005, 62465, 62620, 81406, 97061, 102010, 124930, 132613, 162812, 194122, 203515, 204020, 249860, 265226, 316231, 388244, 407030, 485305, 530452, 632462, 663065, 814060, 970610, 1261793, 1264924, 1326130, 1581155, 1941220, 2523586, 2652260, 3162310, 4111003, 5047172, 6308965, 6324620, 8222006, 9803161, 12617930, 16444012, 19606322, 20555015, 25235860, 39212644, 41110030, 49015805, 82220060, 98031610, 127441093, 196063220, 254882186, 509764372, 637205465, 1274410930, 2548821860]

約数ペア:

[(1, 2548821860), (2, 1274410930), (4, 637205465), (5, 509764372), (10, 254882186), (13, 196063220), (20, 127441093), (26, 98031610), (31, 82220060), (52, 49015805), (62, 41110030), (65, 39212644), (101, 25235860), (124, 20555015), (130, 19606322), (155, 16444012), (202, 12617930), (260, 9803161), (310, 8222006), (403, 6324620), (404, 6308965), (505, 5047172), (620, 4111003), (806, 3162310), (961, 2652260), (1010, 2523586), (1313, 1941220), (1612, 1581155), (1922, 1326130), (2015, 1264924), (2020, 1261793), (2626, 970610), (3131, 814060), (3844, 663065), (4030, 632462), (4805, 530452), (5252, 485305), (6262, 407030), (6565, 388244), (8060, 316231), (9610, 265226), (10201, 249860), (12493, 204020), (12524, 203515), (13130, 194122), (15655, 162812), (19220, 132613), (20402, 124930), (24986, 102010), (26260, 97061), (31310, 81406), (40703, 62620), (40804, 62465), (49972, 51005)]