155231440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21323}}^1$

素因数の和:21356

約数の個数: 80

約数和(自身を含む): 444221568

約数和(自身を除く): 288990128

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 21323, 42646, 85292, 106615, 149261, 170584, 213230, 277199, 298522, 341168, 426460, 554398, 597044, 746305, 852920, 1108796, 1194088, 1385995, 1492610, 1705840, 1940393, 2217592, 2388176, 2771990, 2985220, 3880786, 4435184, 5543980, 5970440, 7761572, 9701965, 11087960, 11940880, 15523144, 19403930, 22175920, 31046288, 38807860, 77615720, 155231440]

約数ペア:

[(1, 155231440), (2, 77615720), (4, 38807860), (5, 31046288), (7, 22175920), (8, 19403930), (10, 15523144), (13, 11940880), (14, 11087960), (16, 9701965), (20, 7761572), (26, 5970440), (28, 5543980), (35, 4435184), (40, 3880786), (52, 2985220), (56, 2771990), (65, 2388176), (70, 2217592), (80, 1940393), (91, 1705840), (104, 1492610), (112, 1385995), (130, 1194088), (140, 1108796), (182, 852920), (208, 746305), (260, 597044), (280, 554398), (364, 426460), (455, 341168), (520, 298522), (560, 277199), (728, 213230), (910, 170584), (1040, 149261), (1456, 106615), (1820, 85292), (3640, 42646), (7280, 21323)]