77721280

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:211

約数の個数: 224

約数和(自身を含む): 242718336

約数和(自身を除く): 164997056

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 17, 20, 26, 28, 32, 34, 35, 40, 52, 56, 64, 65, 68, 70, 80, 85, 91, 104, 112, 119, 130, 136, 140, 157, 160, 170, 182, 208, 221, 224, 238, 260, 272, 280, 314, 320, 340, 364, 416, 442, 448, 455, 476, 520, 544, 560, 595, 628, 680, 728, 785, 832, 884, 910, 952, 1040, 1088, 1099, 1105, 1120, 1190, 1256, 1360, 1456, 1547, 1570, 1768, 1820, 1904, 2041, 2080, 2198, 2210, 2240, 2380, 2512, 2669, 2720, 2912, 3094, 3140, 3536, 3640, 3808, 4082, 4160, 4396, 4420, 4760, 5024, 5338, 5440, 5495, 5824, 6188, 6280, 7072, 7280, 7616, 7735, 8164, 8792, 8840, 9520, 10048, 10205, 10676, 10990, 12376, 12560, 13345, 14144, 14287, 14560, 15470, 16328, 17584, 17680, 18683, 19040, 20410, 21352, 21980, 24752, 25120, 26690, 28574, 29120, 30940, 32656, 34697, 35168, 35360, 37366, 38080, 40820, 42704, 43960, 49504, 50240, 53380, 57148, 61880, 65312, 69394, 70336, 70720, 71435, 74732, 81640, 85408, 87920, 93415, 99008, 106760, 114296, 123760, 130624, 138788, 142870, 149464, 163280, 170816, 173485, 175840, 186830, 213520, 228592, 242879, 247520, 277576, 285740, 298928, 326560, 346970, 351680, 373660, 427040, 457184, 485758, 495040, 555152, 571480, 597856, 653120, 693940, 747320, 854080, 914368, 971516, 1110304, 1142960, 1195712, 1214395, 1387880, 1494640, 1943032, 2220608, 2285920, 2428790, 2775760, 2989280, 3886064, 4571840, 4857580, 5551520, 5978560, 7772128, 9715160, 11103040, 15544256, 19430320, 38860640, 77721280]

約数ペア:

[(1, 77721280), (2, 38860640), (4, 19430320), (5, 15544256), (7, 11103040), (8, 9715160), (10, 7772128), (13, 5978560), (14, 5551520), (16, 4857580), (17, 4571840), (20, 3886064), (26, 2989280), (28, 2775760), (32, 2428790), (34, 2285920), (35, 2220608), (40, 1943032), (52, 1494640), (56, 1387880), (64, 1214395), (65, 1195712), (68, 1142960), (70, 1110304), (80, 971516), (85, 914368), (91, 854080), (104, 747320), (112, 693940), (119, 653120), (130, 597856), (136, 571480), (140, 555152), (157, 495040), (160, 485758), (170, 457184), (182, 427040), (208, 373660), (221, 351680), (224, 346970), (238, 326560), (260, 298928), (272, 285740), (280, 277576), (314, 247520), (320, 242879), (340, 228592), (364, 213520), (416, 186830), (442, 175840), (448, 173485), (455, 170816), (476, 163280), (520, 149464), (544, 142870), (560, 138788), (595, 130624), (628, 123760), (680, 114296), (728, 106760), (785, 99008), (832, 93415), (884, 87920), (910, 85408), (952, 81640), (1040, 74732), (1088, 71435), (1099, 70720), (1105, 70336), (1120, 69394), (1190, 65312), (1256, 61880), (1360, 57148), (1456, 53380), (1547, 50240), (1570, 49504), (1768, 43960), (1820, 42704), (1904, 40820), (2041, 38080), (2080, 37366), (2198, 35360), (2210, 35168), (2240, 34697), (2380, 32656), (2512, 30940), (2669, 29120), (2720, 28574), (2912, 26690), (3094, 25120), (3140, 24752), (3536, 21980), (3640, 21352), (3808, 20410), (4082, 19040), (4160, 18683), (4396, 17680), (4420, 17584), (4760, 16328), (5024, 15470), (5338, 14560), (5440, 14287), (5495, 14144), (5824, 13345), (6188, 12560), (6280, 12376), (7072, 10990), (7280, 10676), (7616, 10205), (7735, 10048), (8164, 9520), (8792, 8840)]