1818187280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1823}}^1$

素因数の和:1993

約数の個数: 160

約数和(自身を含む): 5243664384

約数和(自身を除く): 3425477104

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, 137, 140, 182, 208, 260, 274, 280, 364, 455, 520, 548, 560, 685, 728, 910, 959, 1040, 1096, 1370, 1456, 1781, 1820, 1823, 1918, 2192, 2740, 3562, 3640, 3646, 3836, 4795, 5480, 7124, 7280, 7292, 7672, 8905, 9115, 9590, 10960, 12467, 12761, 14248, 14584, 15344, 17810, 18230, 19180, 23699, 24934, 25522, 28496, 29168, 35620, 36460, 38360, 47398, 49868, 51044, 62335, 63805, 71240, 72920, 76720, 94796, 99736, 102088, 118495, 124670, 127610, 142480, 145840, 165893, 189592, 199472, 204176, 236990, 249340, 249751, 255220, 331786, 379184, 473980, 498680, 499502, 510440, 663572, 829465, 947960, 997360, 999004, 1020880, 1248755, 1327144, 1658930, 1748257, 1895920, 1998008, 2497510, 2654288, 3246763, 3317860, 3496514, 3996016, 4995020, 6493526, 6635720, 6993028, 8741285, 9990040, 12987052, 13271440, 13986056, 16233815, 17482570, 19980080, 22727341, 25974104, 27972112, 32467630, 34965140, 45454682, 51948208, 64935260, 69930280, 90909364, 113636705, 129870520, 139860560, 181818728, 227273410, 259741040, 363637456, 454546820, 909093640, 1818187280]

約数ペア:

[(1, 1818187280), (2, 909093640), (4, 454546820), (5, 363637456), (7, 259741040), (8, 227273410), (10, 181818728), (13, 139860560), (14, 129870520), (16, 113636705), (20, 90909364), (26, 69930280), (28, 64935260), (35, 51948208), (40, 45454682), (52, 34965140), (56, 32467630), (65, 27972112), (70, 25974104), (80, 22727341), (91, 19980080), (104, 17482570), (112, 16233815), (130, 13986056), (137, 13271440), (140, 12987052), (182, 9990040), (208, 8741285), (260, 6993028), (274, 6635720), (280, 6493526), (364, 4995020), (455, 3996016), (520, 3496514), (548, 3317860), (560, 3246763), (685, 2654288), (728, 2497510), (910, 1998008), (959, 1895920), (1040, 1748257), (1096, 1658930), (1370, 1327144), (1456, 1248755), (1781, 1020880), (1820, 999004), (1823, 997360), (1918, 947960), (2192, 829465), (2740, 663572), (3562, 510440), (3640, 499502), (3646, 498680), (3836, 473980), (4795, 379184), (5480, 331786), (7124, 255220), (7280, 249751), (7292, 249340), (7672, 236990), (8905, 204176), (9115, 199472), (9590, 189592), (10960, 165893), (12467, 145840), (12761, 142480), (14248, 127610), (14584, 124670), (15344, 118495), (17810, 102088), (18230, 99736), (19180, 94796), (23699, 76720), (24934, 72920), (25522, 71240), (28496, 63805), (29168, 62335), (35620, 51044), (36460, 49868), (38360, 47398)]