639137044

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{4357}}^1$

素因数の和:4425

約数の個数: 72

約数和(自身を含む): 1429145088

約数和(自身を除く): 790008044

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 169, 182, 217, 338, 364, 403, 434, 676, 806, 868, 1183, 1612, 2366, 2821, 4357, 4732, 5239, 5642, 8714, 10478, 11284, 17428, 20956, 30499, 36673, 56641, 60998, 73346, 113282, 121996, 135067, 146692, 226564, 270134, 396487, 540268, 736333, 792974, 945469, 1472666, 1585948, 1755871, 1890938, 2945332, 3511742, 3781876, 5154331, 7023484, 10308662, 12291097, 20617324, 22826323, 24582194, 45652646, 49164388, 91305292, 159784261, 319568522, 639137044]

約数ペア:

[(1, 639137044), (2, 319568522), (4, 159784261), (7, 91305292), (13, 49164388), (14, 45652646), (26, 24582194), (28, 22826323), (31, 20617324), (52, 12291097), (62, 10308662), (91, 7023484), (124, 5154331), (169, 3781876), (182, 3511742), (217, 2945332), (338, 1890938), (364, 1755871), (403, 1585948), (434, 1472666), (676, 945469), (806, 792974), (868, 736333), (1183, 540268), (1612, 396487), (2366, 270134), (2821, 226564), (4357, 146692), (4732, 135067), (5239, 121996), (5642, 113282), (8714, 73346), (10478, 60998), (11284, 56641), (17428, 36673), (20956, 30499)]