8448440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1$

素因数の和:253

約数の個数: 128

約数和(自身を含む): 25643520

約数和(自身を除く): 17195080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 211, 220, 260, 280, 286, 308, 364, 385, 422, 440, 455, 520, 572, 616, 715, 728, 770, 844, 910, 1001, 1055, 1144, 1430, 1477, 1540, 1688, 1820, 2002, 2110, 2321, 2743, 2860, 2954, 3080, 3640, 4004, 4220, 4642, 5005, 5486, 5720, 5908, 7385, 8008, 8440, 9284, 10010, 10972, 11605, 11816, 13715, 14770, 16247, 18568, 19201, 20020, 21944, 23210, 27430, 29540, 30173, 32494, 38402, 40040, 46420, 54860, 59080, 60346, 64988, 76804, 81235, 92840, 96005, 109720, 120692, 129976, 150865, 153608, 162470, 192010, 211211, 241384, 301730, 324940, 384020, 422422, 603460, 649880, 768040, 844844, 1056055, 1206920, 1689688, 2112110, 4224220, 8448440]

約数ペア:

[(1, 8448440), (2, 4224220), (4, 2112110), (5, 1689688), (7, 1206920), (8, 1056055), (10, 844844), (11, 768040), (13, 649880), (14, 603460), (20, 422422), (22, 384020), (26, 324940), (28, 301730), (35, 241384), (40, 211211), (44, 192010), (52, 162470), (55, 153608), (56, 150865), (65, 129976), (70, 120692), (77, 109720), (88, 96005), (91, 92840), (104, 81235), (110, 76804), (130, 64988), (140, 60346), (143, 59080), (154, 54860), (182, 46420), (211, 40040), (220, 38402), (260, 32494), (280, 30173), (286, 29540), (308, 27430), (364, 23210), (385, 21944), (422, 20020), (440, 19201), (455, 18568), (520, 16247), (572, 14770), (616, 13715), (715, 11816), (728, 11605), (770, 10972), (844, 10010), (910, 9284), (1001, 8440), (1055, 8008), (1144, 7385), (1430, 5908), (1477, 5720), (1540, 5486), (1688, 5005), (1820, 4642), (2002, 4220), (2110, 4004), (2321, 3640), (2743, 3080), (2860, 2954)]