20348316

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:519

約数の個数: 72

約数和(自身を含む): 55036800

約数和(自身を除く): 34688484

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 71, 76, 114, 142, 171, 213, 228, 284, 342, 419, 426, 639, 684, 838, 852, 1257, 1278, 1349, 1676, 2514, 2556, 2698, 3771, 4047, 5028, 5396, 7542, 7961, 8094, 12141, 15084, 15922, 16188, 23883, 24282, 29749, 31844, 47766, 48564, 59498, 71649, 89247, 95532, 118996, 143298, 178494, 267741, 286596, 356988, 535482, 565231, 1070964, 1130462, 1695693, 2260924, 3391386, 5087079, 6782772, 10174158, 20348316]

約数ペア:

[(1, 20348316), (2, 10174158), (3, 6782772), (4, 5087079), (6, 3391386), (9, 2260924), (12, 1695693), (18, 1130462), (19, 1070964), (36, 565231), (38, 535482), (57, 356988), (71, 286596), (76, 267741), (114, 178494), (142, 143298), (171, 118996), (213, 95532), (228, 89247), (284, 71649), (342, 59498), (419, 48564), (426, 47766), (639, 31844), (684, 29749), (838, 24282), (852, 23883), (1257, 16188), (1278, 15922), (1349, 15084), (1676, 12141), (2514, 8094), (2556, 7961), (2698, 7542), (3771, 5396), (4047, 5028)]