278246280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1031}}^1$

素因数の和:1231

約数の個数: 128

約数和(自身を含む): 905022720

約数和(自身を除く): 626776440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 173, 195, 260, 312, 346, 390, 519, 520, 692, 780, 865, 1031, 1038, 1384, 1560, 1730, 2062, 2076, 2249, 2595, 3093, 3460, 4124, 4152, 4498, 5155, 5190, 6186, 6747, 6920, 8248, 8996, 10310, 10380, 11245, 12372, 13403, 13494, 15465, 17992, 20620, 20760, 22490, 24744, 26806, 26988, 30930, 33735, 40209, 41240, 44980, 53612, 53976, 61860, 67015, 67470, 80418, 89960, 107224, 123720, 134030, 134940, 160836, 178363, 201045, 268060, 269880, 321672, 356726, 402090, 535089, 536120, 713452, 804180, 891815, 1070178, 1426904, 1608360, 1783630, 2140356, 2318719, 2675445, 3567260, 4280712, 4637438, 5350890, 6956157, 7134520, 9274876, 10701780, 11593595, 13912314, 18549752, 21403560, 23187190, 27824628, 34780785, 46374380, 55649256, 69561570, 92748760, 139123140, 278246280]

約数ペア:

[(1, 278246280), (2, 139123140), (3, 92748760), (4, 69561570), (5, 55649256), (6, 46374380), (8, 34780785), (10, 27824628), (12, 23187190), (13, 21403560), (15, 18549752), (20, 13912314), (24, 11593595), (26, 10701780), (30, 9274876), (39, 7134520), (40, 6956157), (52, 5350890), (60, 4637438), (65, 4280712), (78, 3567260), (104, 2675445), (120, 2318719), (130, 2140356), (156, 1783630), (173, 1608360), (195, 1426904), (260, 1070178), (312, 891815), (346, 804180), (390, 713452), (519, 536120), (520, 535089), (692, 402090), (780, 356726), (865, 321672), (1031, 269880), (1038, 268060), (1384, 201045), (1560, 178363), (1730, 160836), (2062, 134940), (2076, 134030), (2249, 123720), (2595, 107224), (3093, 89960), (3460, 80418), (4124, 67470), (4152, 67015), (4498, 61860), (5155, 53976), (5190, 53612), (6186, 44980), (6747, 41240), (6920, 40209), (8248, 33735), (8996, 30930), (10310, 26988), (10380, 26806), (11245, 24744), (12372, 22490), (13403, 20760), (13494, 20620), (15465, 17992)]