78998920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1973}}^1$

素因数の和:2015

約数の個数: 128

約数和(自身を含む): 238775040

約数和(自身を除く): 159776120

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, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 715, 728, 770, 910, 1001, 1144, 1430, 1540, 1820, 1973, 2002, 2860, 3080, 3640, 3946, 4004, 5005, 5720, 7892, 8008, 9865, 10010, 13811, 15784, 19730, 20020, 21703, 25649, 27622, 39460, 40040, 43406, 51298, 55244, 69055, 78920, 86812, 102596, 108515, 110488, 128245, 138110, 151921, 173624, 179543, 205192, 217030, 256490, 276220, 282139, 303842, 359086, 434060, 512980, 552440, 564278, 607684, 718172, 759605, 868120, 897715, 1025960, 1128556, 1215368, 1410695, 1436344, 1519210, 1795430, 1974973, 2257112, 2821390, 3038420, 3590860, 3949946, 5642780, 6076840, 7181720, 7899892, 9874865, 11285560, 15799784, 19749730, 39499460, 78998920]

約数ペア:

[(1, 78998920), (2, 39499460), (4, 19749730), (5, 15799784), (7, 11285560), (8, 9874865), (10, 7899892), (11, 7181720), (13, 6076840), (14, 5642780), (20, 3949946), (22, 3590860), (26, 3038420), (28, 2821390), (35, 2257112), (40, 1974973), (44, 1795430), (52, 1519210), (55, 1436344), (56, 1410695), (65, 1215368), (70, 1128556), (77, 1025960), (88, 897715), (91, 868120), (104, 759605), (110, 718172), (130, 607684), (140, 564278), (143, 552440), (154, 512980), (182, 434060), (220, 359086), (260, 303842), (280, 282139), (286, 276220), (308, 256490), (364, 217030), (385, 205192), (440, 179543), (455, 173624), (520, 151921), (572, 138110), (616, 128245), (715, 110488), (728, 108515), (770, 102596), (910, 86812), (1001, 78920), (1144, 69055), (1430, 55244), (1540, 51298), (1820, 43406), (1973, 40040), (2002, 39460), (2860, 27622), (3080, 25649), (3640, 21703), (3946, 20020), (4004, 19730), (5005, 15784), (5720, 13811), (7892, 10010), (8008, 9865)]