278102240

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:305

約数の個数: 192

約数和(自身を含む): 772208640

約数和(自身を除く): 494106400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 32, 38, 40, 52, 62, 65, 76, 80, 95, 104, 124, 130, 152, 155, 160, 190, 208, 227, 247, 248, 260, 304, 310, 380, 403, 416, 454, 494, 496, 520, 589, 608, 620, 760, 806, 908, 988, 992, 1040, 1135, 1178, 1235, 1240, 1520, 1612, 1816, 1976, 2015, 2080, 2270, 2356, 2470, 2480, 2945, 2951, 3040, 3224, 3632, 3952, 4030, 4313, 4540, 4712, 4940, 4960, 5890, 5902, 6448, 7037, 7264, 7657, 7904, 8060, 8626, 9080, 9424, 9880, 11780, 11804, 12896, 14074, 14755, 15314, 16120, 17252, 18160, 18848, 19760, 21565, 23560, 23608, 28148, 29510, 30628, 32240, 34504, 35185, 36320, 38285, 39520, 43130, 47120, 47216, 56069, 56296, 59020, 61256, 64480, 69008, 70370, 76570, 86260, 91481, 94240, 94432, 112138, 112592, 118040, 122512, 133703, 138016, 140740, 153140, 172520, 182962, 224276, 225184, 236080, 245024, 267406, 280345, 281480, 306280, 345040, 365924, 448552, 457405, 472160, 534812, 560690, 562960, 612560, 668515, 690080, 731848, 897104, 914810, 1069624, 1121380, 1125920, 1225120, 1337030, 1463696, 1738139, 1794208, 1829620, 2139248, 2242760, 2674060, 2927392, 3476278, 3659240, 4278496, 4485520, 5348120, 6952556, 7318480, 8690695, 8971040, 10696240, 13905112, 14636960, 17381390, 21392480, 27810224, 34762780, 55620448, 69525560, 139051120, 278102240]

約数ペア:

[(1, 278102240), (2, 139051120), (4, 69525560), (5, 55620448), (8, 34762780), (10, 27810224), (13, 21392480), (16, 17381390), (19, 14636960), (20, 13905112), (26, 10696240), (31, 8971040), (32, 8690695), (38, 7318480), (40, 6952556), (52, 5348120), (62, 4485520), (65, 4278496), (76, 3659240), (80, 3476278), (95, 2927392), (104, 2674060), (124, 2242760), (130, 2139248), (152, 1829620), (155, 1794208), (160, 1738139), (190, 1463696), (208, 1337030), (227, 1225120), (247, 1125920), (248, 1121380), (260, 1069624), (304, 914810), (310, 897104), (380, 731848), (403, 690080), (416, 668515), (454, 612560), (494, 562960), (496, 560690), (520, 534812), (589, 472160), (608, 457405), (620, 448552), (760, 365924), (806, 345040), (908, 306280), (988, 281480), (992, 280345), (1040, 267406), (1135, 245024), (1178, 236080), (1235, 225184), (1240, 224276), (1520, 182962), (1612, 172520), (1816, 153140), (1976, 140740), (2015, 138016), (2080, 133703), (2270, 122512), (2356, 118040), (2470, 112592), (2480, 112138), (2945, 94432), (2951, 94240), (3040, 91481), (3224, 86260), (3632, 76570), (3952, 70370), (4030, 69008), (4313, 64480), (4540, 61256), (4712, 59020), (4940, 56296), (4960, 56069), (5890, 47216), (5902, 47120), (6448, 43130), (7037, 39520), (7264, 38285), (7657, 36320), (7904, 35185), (8060, 34504), (8626, 32240), (9080, 30628), (9424, 29510), (9880, 28148), (11780, 23608), (11804, 23560), (12896, 21565), (14074, 19760), (14755, 18848), (15314, 18160), (16120, 17252)]