287300560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:213

約数の個数: 120

約数和(自身を含む): 715889448

約数和(自身を除く): 428588888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 37, 40, 62, 74, 80, 101, 124, 148, 155, 185, 202, 248, 296, 310, 370, 404, 496, 505, 592, 620, 740, 808, 961, 1010, 1147, 1240, 1480, 1616, 1922, 2020, 2294, 2480, 2960, 3131, 3737, 3844, 4040, 4588, 4805, 5735, 6262, 7474, 7688, 8080, 9176, 9610, 11470, 12524, 14948, 15376, 15655, 18352, 18685, 19220, 22940, 25048, 29896, 31310, 35557, 37370, 38440, 45880, 50096, 59792, 62620, 71114, 74740, 76880, 91760, 97061, 115847, 125240, 142228, 149480, 177785, 194122, 231694, 250480, 284456, 298960, 355570, 388244, 463388, 485305, 568912, 579235, 711140, 776488, 926776, 970610, 1158470, 1422280, 1552976, 1853552, 1941220, 2316940, 2844560, 3591257, 3882440, 4633880, 7182514, 7764880, 9267760, 14365028, 17956285, 28730056, 35912570, 57460112, 71825140, 143650280, 287300560]

約数ペア:

[(1, 287300560), (2, 143650280), (4, 71825140), (5, 57460112), (8, 35912570), (10, 28730056), (16, 17956285), (20, 14365028), (31, 9267760), (37, 7764880), (40, 7182514), (62, 4633880), (74, 3882440), (80, 3591257), (101, 2844560), (124, 2316940), (148, 1941220), (155, 1853552), (185, 1552976), (202, 1422280), (248, 1158470), (296, 970610), (310, 926776), (370, 776488), (404, 711140), (496, 579235), (505, 568912), (592, 485305), (620, 463388), (740, 388244), (808, 355570), (961, 298960), (1010, 284456), (1147, 250480), (1240, 231694), (1480, 194122), (1616, 177785), (1922, 149480), (2020, 142228), (2294, 125240), (2480, 115847), (2960, 97061), (3131, 91760), (3737, 76880), (3844, 74740), (4040, 71114), (4588, 62620), (4805, 59792), (5735, 50096), (6262, 45880), (7474, 38440), (7688, 37370), (8080, 35557), (9176, 31310), (9610, 29896), (11470, 25048), (12524, 22940), (14948, 19220), (15376, 18685), (15655, 18352)]