78204015

素因数分解:

$3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:325

約数の個数: 64

約数和(自身を含む): 145152000

約数和(自身を除く): 66947985

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 71, 123, 135, 199, 205, 213, 355, 369, 597, 615, 639, 995, 1065, 1107, 1791, 1845, 1917, 2911, 2985, 3195, 5373, 5535, 8159, 8733, 8955, 9585, 14129, 14555, 24477, 26199, 26865, 40795, 42387, 43665, 70645, 73431, 78597, 122385, 127161, 130995, 211935, 220293, 367155, 381483, 392985, 579289, 635805, 1101465, 1737867, 1907415, 2896445, 5213601, 8689335, 15640803, 26068005, 78204015]

約数ペア:

[(1, 78204015), (3, 26068005), (5, 15640803), (9, 8689335), (15, 5213601), (27, 2896445), (41, 1907415), (45, 1737867), (71, 1101465), (123, 635805), (135, 579289), (199, 392985), (205, 381483), (213, 367155), (355, 220293), (369, 211935), (597, 130995), (615, 127161), (639, 122385), (995, 78597), (1065, 73431), (1107, 70645), (1791, 43665), (1845, 42387), (1917, 40795), (2911, 26865), (2985, 26199), (3195, 24477), (5373, 14555), (5535, 14129), (8159, 9585), (8733, 8955)]