20972016

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{659}}^1$

素因数の和:703

約数の個数: 120

約数和(自身を含む): 67026960

約数和(自身を除く): 46054944

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 17, 18, 24, 26, 34, 36, 39, 48, 51, 52, 68, 72, 78, 102, 104, 117, 136, 144, 153, 156, 204, 208, 221, 234, 272, 306, 312, 408, 442, 468, 612, 624, 659, 663, 816, 884, 936, 1224, 1318, 1326, 1768, 1872, 1977, 1989, 2448, 2636, 2652, 3536, 3954, 3978, 5272, 5304, 5931, 7908, 7956, 8567, 10544, 10608, 11203, 11862, 15816, 15912, 17134, 22406, 23724, 25701, 31632, 31824, 33609, 34268, 44812, 47448, 51402, 67218, 68536, 77103, 89624, 94896, 100827, 102804, 134436, 137072, 145639, 154206, 179248, 201654, 205608, 268872, 291278, 308412, 403308, 411216, 436917, 537744, 582556, 616824, 806616, 873834, 1165112, 1233648, 1310751, 1613232, 1747668, 2330224, 2621502, 3495336, 5243004, 6990672, 10486008, 20972016]

約数ペア:

[(1, 20972016), (2, 10486008), (3, 6990672), (4, 5243004), (6, 3495336), (8, 2621502), (9, 2330224), (12, 1747668), (13, 1613232), (16, 1310751), (17, 1233648), (18, 1165112), (24, 873834), (26, 806616), (34, 616824), (36, 582556), (39, 537744), (48, 436917), (51, 411216), (52, 403308), (68, 308412), (72, 291278), (78, 268872), (102, 205608), (104, 201654), (117, 179248), (136, 154206), (144, 145639), (153, 137072), (156, 134436), (204, 102804), (208, 100827), (221, 94896), (234, 89624), (272, 77103), (306, 68536), (312, 67218), (408, 51402), (442, 47448), (468, 44812), (612, 34268), (624, 33609), (659, 31824), (663, 31632), (816, 25701), (884, 23724), (936, 22406), (1224, 17134), (1318, 15912), (1326, 15816), (1768, 11862), (1872, 11203), (1977, 10608), (1989, 10544), (2448, 8567), (2636, 7956), (2652, 7908), (3536, 5931), (3954, 5304), (3978, 5272)]